Limp Modes

[RPP Senior Member Find all posts View Profile Close RPP]

For a Prado 150 / 2.8l engine.
Does anyone have a list of all the conditions under which the ECU will put the vehicle into Limp Mode?.
Also, the conditions under which the ECU will stop the vehicle?

[ptommo59 Senior Member Find all posts View Profile Close ptommo59]

This is the 1GD-FTV failsafe list which I believe covers the answer to your question (one with engine stall will be a stop vehicle code)

DTC No Detection Item Failsafe Operation Failsafe Deactivation Condition

P0031	Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1)	The power to the air fuel ratio sensor and air fuel ratio sensor heater is stopped.	Pass condition detected
P0032	Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)	The power to the air fuel ratio sensor and air fuel ratio sensor heater is stopped.	Pass condition detected
P0046	Turbocharger / Supercharger Boost Control Solenoid Circuit Range / Performance	The engine power is limited.	Engine switch off
P0047	Turbocharger/ Supercharger Boost Control "A" Circuit Low	The engine power is limited.	Engine switch off
P0048	Turbocharger/ Supercharger Boost Control "A" Circuit High	The engine power is limited.	Engine switch off
P007C	Charge Air Cooler Temperature Sensor Circuit Low	The intake air temperature is fixed at a specified value.	Pass condition detected
P007D	Charge Air Cooler Temperature Sensor Circuit High	The intake air temperature is fixed at a specified value.	Pass condition detected
P0087	Fuel Rail/System Pressure - Too Low	The engine power is reduced by 90%.*	Engine switch off
P0088	Fuel Rail/System Pressure - Too High	The engine power is reduced by 90%.*	Engine switch off
P0093	Fuel System Leak Detected - Large Leak	The engine power is limited. PM forced regeneration is prohibited.	Pass condition detected
P00BB	Fuel Injector Insufficient Flow - Forced Limited Power	The engine power is limited.	Pass condition detected
P0100	Mass Air Flow Circuit Malfunction	The engine power is limited.	Pass condition detected
P0101	Mass or Volume Air Flow Circuit	The engine power is limited.	Engine switch off
P0107	Manifold Absolute Pressure/Barometric Pressure Circuit Low Input	The turbo pressure is fixed at a specified value.	Pass condition detected
P0108	Manifold Absolute Pressure/Barometric Pressure Circuit High Input	The turbo pressure is fixed at a specified value.	Pass condition detected
P0112	Intake Air Temperature Circuit Low Input	The intake air temperature value is fixed.	Pass condition detected
P0113	Intake Air Temperature Circuit High Input	The intake air temperature value is fixed.	Pass condition detected
P0115	Engine Coolant Temperature Circuit	The engine coolant temperature sensor output is fixed at a specified value (the fixed value varies depending on conditions).	Pass condition detected
P0117	Engine Coolant Temperature Circuit Low Input	The engine coolant temperature sensor output is fixed at a specified value (the fixed value varies depending on conditions).	Pass condition detected
P0118	Engine Coolant Temperature Circuit High Input	The engine coolant temperature sensor output is fixed at a specified value (the fixed value varies depending on conditions).	Pass condition detected
P0122	Throttle/Pedal Position Sensor/Switch "A" Circuit Low Input	The engine power is limited.	Engine switch off
P0123	Throttle/Pedal Position Sensor/Switch "A" Circuit High Input	The engine power is limited.	Engine switch off
P0190	Fuel Rail Pressure Sensor Circuit	The main and sub circuits of the fuel pressure sensor are malfunctioning: The engine power is reduced by 90%.* The main or sub circuit of the fuel pressure sensor is malfunctioning: The engine power is limited.	Engine switch off
P0191	Fuel Rail Pressure Sensor Circuit Range / Performance	The main and sub circuits of the fuel pressure sensor are malfunctioning: The engine power is reduced by 90%.* The main or sub circuit of the fuel pressure sensor is malfunctioning: The engine power is limited.	Engine switch off
P0192	Fuel Rail Pressure Sensor Circuit Low Input	The main and sub circuits of the fuel pressure sensor are malfunctioning: The engine power is reduced by 90%.* The main or sub circuit of the fuel pressure sensor is malfunctioning: The engine power is limited.	Engine switch off
P0193	Fuel Rail Pressure Sensor Circuit High Input	The main and sub circuits of the fuel pressure sensor are malfunctioning: The engine power is reduced by 90%.* The main or sub circuit of the fuel pressure sensor is malfunctioning: The engine power is limited.	Engine switch off
P0201	Injector Circuit / Open - (Cylinder 1)	The engine power is limited.	Engine switch off to on (IG) or STA on
P0202	Injector Circuit / Open - (Cylinder 2)	The engine power is limited.	Engine switch off to on (IG) or STA on
P0203	Injector Circuit / Open - (Cylinder 3)	The engine power is limited.	Engine switch off to on (IG) or STA on
P0204	Injector Circuit / Open - (Cylinder 4)	The engine power is limited.	Engine switch off to on (IG) or STA on
P0299	Turbocharger / Supercharger Underboost	The engine power is limited.	Pass condition detected
P0335	Crankshaft Position Sensor "A" Circuit	The engine power is limited.	Pass condition detected
P0337	Crankshaft Position Sensor "A" Circuit Low Input	The engine power is limited.	Pass condition detected
P0338	Crankshaft Position Sensor "A" Circuit High Input	The engine power is limited.	Pass condition detected
P0339	Crankshaft Position Sensor "A" Circuit Intermittent	The engine power is limited.	Pass condition detected
P0340	Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)	The engine power is limited.	Pass condition detected
P0342	Camshaft Position Sensor "A" Circuit Low Input (Bank 1 or Single Sensor)	The engine power is limited.	Pass condition detected
P0343	Camshaft Position Sensor "A" Circuit High Input (Bank 1 or Single Sensor)	The engine power is limited.	Pass condition detected
P0400	Exhaust Gas Recirculation Flow	PM forced regeneration is prohibited.	Engine switch off
P0405	Exhaust Gas Recirculation Sensor "A" Circuit Low	The engine power is limited.	Engine switch off
P0406	Exhaust Gas Recirculation Sensor "A" Circuit High	The engine power is limited.	Engine switch off
P0420	Catalyst System Efficiency Below Threshold (Bank 1)	PM forced regeneration is prohibited.	Pass condition detected
P042E	Exhaust Gas Recirculation "A" Control Stuck Open	PM forced regeneration is prohibited.	Engine switch off
P0488	Exhaust Gas Recirculation Throttle Position Control Range/Performance	The engine power is limited.	Engine switch off
P0489	Exhaust Gas Recirculation Control Circuit Low	The engine power is limited.	Engine switch off
P0490	Exhaust Gas Recirculation Control Circuit High	The engine power is limited.	Engine switch off
P0500	Vehicle Speed Sensor "A"	The vehicle speed is fixed at 0 km/h (0 mph).	Pass condition detected
P0545	Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 1)	PM forced regeneration is prohibited.	Pass condition detected
P0546	Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 1)	PM forced regeneration is prohibited.	Pass condition detected
P0606	ECM / PCM Processor	The engine is stalled.	Pass condition detected
P060A	Internal Control Module Monitoring Processor Performance	The engine is stalled.	Pass condition detected
P060B	Internal Control Module A/D Processing Performance	The engine power is limited.	Pass condition detected
P060D	Internal Control Module Accelerator Pedal Position Performance	The engine power is limited.	Pass condition detected
P0627	Fuel Pump Control Circuit / Open	The engine power is limited.	Pass condition detected
P062D	No. 1 Fuel Injector Driver Circuit Performance	The engine power is limited.	Engine switch off
P1229	Fuel Pump System	The engine power is limited.	Engine switch off
P1251	Turbocharger / Supercharger Overboost Condition (Too High)	The engine power is limited.	Engine switch off
P1271	Fuel Regulator Circuit Malfunction (EDU Drive)	The engine power is limited.	Engine switch off
P1272	Fuel Pressure Regulator Malfunction	The engine power is limited.	Engine switch off
P2006	Intake Manifold Runner Control Stuck Closed (Bank 1)	The engine power is limited.	Engine switch off
P200C	Diesel Particulate Filter Over Temperature Bank 1	PM forced regeneration is prohibited.	Engine switch off
P200E	Catalyst System Temperature Too High Bank 1	PM forced regeneration is prohibited.	Engine switch off
P2032	Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 2)	PM forced regeneration is prohibited.	Pass condition detected
P2033	Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2)	PM forced regeneration is prohibited.	Pass condition detected
P2080	Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 1	PM forced regeneration is prohibited.	Pass condition detected
P2084	Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 2	PM forced regeneration is prohibited.	Pass condition detected
P20CD	Open in Exhaust Aftertreatment Fuel Injector "A" Control Circuit	The engine power is reduced by 90%.* PM forced regeneration is prohibited.	Pass condition detected
P20CF	Exhaust Aftertreatment Fuel Injector "A" Stuck Open	The engine power is reduced by 90%.*	Pass condition detected
P2120	Throttle/Pedal Position Sensor/Switch "D" Circuit	The engine power is limited.	Engine switch off
P2121	Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance	The engine power is limited.	Engine switch off
P2122	Throttle/Pedal Position Sensor/Switch "D" Circuit Low Input	The engine power is limited.	Engine switch off
P2123	Throttle/Pedal Position Sensor/Switch "D" Circuit High Input	The engine power is limited.	Engine switch off
P2125	Throttle/Pedal Position Sensor/Switch "E" Circuit	The engine power is limited.	Engine switch off
P2127	Throttle/Pedal Position Sensor/Switch "E" Circuit Low Input	The engine power is limited.	Engine switch off
P2128	Throttle/Pedal Position Sensor/Switch "E" Circuit High Input	The engine power is limited.	Engine switch off
P2138	Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation	The engine power is limited.	Engine switch off
P2195	Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1)	The power to the air fuel ratio sensor and air fuel ratio sensor heater is stopped.	Pass condition detected
P2226	Barometric Pressure Circuit	The atmospheric pressure is fixed at a specified value.	Pass condition detected
P2228	Barometric Pressure Circuit Low Input	The atmospheric pressure is fixed at a specified value.	Pass condition detected
P2229	Barometric Pressure Circuit High Input	The atmospheric pressure is fixed at a specified value.	Pass condition detected
P2237	Oxygen (A/F) Sensor Pumping Current Circuit / Open (Bank 1 Sensor 1)	The power to the air fuel ratio sensor and air fuel ratio sensor heater is stopped.	Pass condition detected
P2238	Oxygen (A/F) Sensor Pumping Current Circuit Low (Bank 1 Sensor 1)	The power to the air fuel ratio sensor and air fuel ratio sensor heater is stopped.	Pass condition detected
P2239	Oxygen (A/F) Sensor Pumping Current Circuit High (Bank 1 Sensor 1)	The power to the air fuel ratio sensor and air fuel ratio sensor heater is stopped.	Pass condition detected
P2252	Oxygen (A/F) Sensor Reference Ground Circuit Low (Bank 1 Sensor 1)	The power to the air fuel ratio sensor and air fuel ratio sensor heater is stopped.	Pass condition detected
P2253	Oxygen (A/F) Sensor Reference Ground Circuit High (Bank 1 Sensor 1)	The power to the air fuel ratio sensor and air fuel ratio sensor heater is stopped.	Pass condition detected
P242B	Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 3	PM forced regeneration is prohibited.	Pass condition detected
P242C	Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 3	PM forced regeneration is prohibited.	Pass condition detected
P242D	Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 3	PM forced regeneration is prohibited.	Pass condition detected
P244B	Diesel Particulate Filter Differential Pressure Too High	The engine power is limited. PM forced regeneration is prohibited.	Engine switch off
P2458	Diesel Particulate Filter Regeneration Duration	PM forced regeneration is prohibited.	Engine switch off
P2463	Diesel Particulate Filter Restriction - Soot Accumulation	The engine power is limited. PM forced regeneration is prohibited.	Pass condition detected
P2564	Turbocharger/ Supercharger Boost Control Position Sensor "A" Circuit Low	The engine power is limited.	Engine switch off
P2565	Turbocharger/ Supercharger Boost Control Position Sensor "A" Circuit High	The engine power is limited.	Engine switch off

[RPP Senior Member Find all posts View Profile Close RPP]

Excellent work.
I notice there are no ABS and Transmission related failures.
My vehicle wound up in limp mode after a transmission hose popped off at the radiator end. ATF got sprayed along the underside of the vehicle and onto the highway. Needed a new transmission.
Is there a Legend that describes some of the terminology eg "Pass condition detected".
Thanks for the good work.

[ptommo59 Senior Member Find all posts View Profile Close ptommo59]

There are fail safe lists for just about all systems on the vehicle but doing a quick scan of a few I couldn't find any that specified they put the engine into limp mode as most are about safety and protecting that system from preventable damage.

Are you sure that your engine went into limp mode or did you just lose drive/gear selections due to insufficient trans fluid to maintain pressure in the solenoids (as I cant see any potential link to engine limp mode conditions in the failsafe list for the engine or transmission).

For last point, if you look up the individual DTCs in the repair manual they give you the sensor being monitored and conditions for declaring a fault condition.
So my understanding is those with "Pass condition detected" as the Failsafe Deactivation Condition will revert to normal operating mode and reset the DTC (move to a history code) when the monitored value goes above or below the applicable fault trigger threshold.

Hope that makes sense.

[RPP Senior Member Find all posts View Profile Close RPP]

Makes sense thanks. Looks like the actions taken by the algorithms vary widely depending on the situations.

My trans went thru 2 phases.
The first one occurred after the ATF hose popped off and dumped fluid. The vehicle lost power. When I stopped and restarted it seemed like it was stuck in 3rd.
The second occurred after my Dealer cleaned up the mess and refilled the trans. Drove OK (harsh reverse gear change tho) for about 10Km then back to limping in a middle gear. New trans after that.

I also followed the tribulations of a 150 driver who got stuck on a clay pan in the Simpson a couple of years back. I surmised he tried to rev his way out of the mud and boiled the ATF. The vehicle didn't lose any fluid but the gearbox shutdown and he was stuck on the clay pan overnight. The ATF cooled down and he got out in the morning. However the vehicle was in a limp mode. He managed to crawl the 100-200Km ish into Birdsville (don't know how he got over the big dunes). The mechanics couldn't do any quick fixes so he limped all the way to Adelaide!

[ptommo59 Senior Member Find all posts View Profile Close ptommo59]

Funny the trans is not supposed to directly put the engine into limp mode at any temp (just modifies the shifting patterns and lock up operation when the TC temp goes over 130 degrees and also turns the dash light on at 150 - they revert to normal at 110 and 135 degrees respectively).
My understanding is it will be the engine water and/or fuel temps going over threshold due to effect of the high ATF temps that will cause it to lose power or go into limp mode (should trigger a P1608 DTC which also sets flags as to which system/condition triggered the code in the Freeze Frame data).
Problem with this is generally once it sets the MIL on, the conditions that triggered the issue need to have changed and DTC needs to be physically reset to revert to normal operation, or for some others that will happen when you cycle the ignition off as per the earlier list.

AC60F failsafe list (sorry can't fix formatting but if you copy and paste info a spreadsheet may be able to sort)

Transmission revolution sensor (NT)	During a transmission revolution sensor (NT) malfunction, shift control is performed based on the transmission revolution sensor (SP2) signal.
Transmission revolution sensor (SP2)	During a transmission revolution sensor (SP2) malfunction, shift control is performed based on the wheel speed sensor signal.
ATF temperature sensors (No. 1 and No. 2)	During an ATF temperature sensor malfunction, up-shifting to 5th and 6th is prohibited.
Shift solenoid valve SL1, SL2, SL3 and SL4	Stop the conduction of electric power to a failed solenoid and shift gears by turning on/off normal solenoids. If all solenoids are malfunctioning, gears will be selected through mechanical hydraulic circuits.
Shift solenoid valve SLT	During a shift solenoid valve SLT malfunction, the current to the shift solenoid valve is stopped. However, shifting is performed through normal clutch pressure control.
Shift solenoid valve SLU	During a shift solenoid valve SLU malfunction, the current to the shift solenoid valve is stopped. This stops lock-up control, thus decreasing fuel economy.

Shift solenoid valve SL1	ON	ON	ON	ON	OFF	OFF
Shift solenoid valve SL2	OFF	OFF	OFF	ON	ON	ON
Shift solenoid valve SL3	OFF	ON	OFF	OFF	OFF	ON
Shift solenoid valve SL4	OFF	OFF	ON	OFF	ON	OFF

Shift solenoid valve SL1	ON Malfunction (without Fail-safe Control)*	1st	2nd	3rd	4th	4th	4th
OFF Malfunction (without Fail-safe Control)	1st to N	2nd to N	3rd to N	4th to N	5th	6th
Fail-safe Control during OFF Malfunction	Fixed in 3rd or 5th
Shift solenoid valve SL2	ON Malfunction (without Fail-safe Control)*	1st to 4th	2nd to 4th	3rd to 4th	4th	5th	6th
OFF Malfunction (without Fail-safe Control)	1st	2nd	3rd	4th to 1st	5th to N	6th to N
Fail-safe Control during OFF Malfunction	Fixed in 2nd or 3rd
Shift solenoid valve SL3	ON Malfunction (without Fail-safe Control)*	1st to 2nd	2nd	3rd	4th	5th	6th
OFF Malfunction (without Fail-safe Control)	1st	2nd to 1st	3rd	4th	5th	6th to N
Fail-safe Control during OFF Malfunction	Fixed in 3rd
Shift solenoid valve SL4	ON Malfunction (without Fail-safe Control)*	3rd	3rd	3rd	4th	5th	5th
OFF Malfunction (without Fail-safe Control)	1st	2nd	3rd to 1st	4th	5th to N	6th
Fail-safe Control during OFF Malfunction	Fixed in 2nd

*: Fail-safe control is not actuated when an ON malfunction occurs.

[Doug32 Member Find all posts View Profile Close Doug32]

This is indeed a very informative thread. Would it be possible to list the codes for a 150 3.0L diesel?

[Doug32 Member Find all posts View Profile Close Doug32]

This is indeed a very informative thread. Would it be possible to list the codes for a 150 3.0L diesel?

[ptommo59 Senior Member Find all posts View Profile Close ptommo59]

Hi Doug,

As requested , this is the Failsafe list for the 1KD-FTV with EGR Cooler, headings don't copy without stuffing the formatting for the rest but are DTC No, Detection Item, Failsafe Operation, Failsafe Deactivation Condition. Many will most likely be same or similar to the 1GD version.

P0087	Fuel Rail/System Pressure - Too Low	The engine power is reduced by 90%.*	Ignition switch off
P0088	Fuel Rail/System Pressure - Too High	The engine power is reduced by 90%.*	Ignition switch off
P0093	Fuel System Leak Detected - Large Leak	The engine power is reduced by 90%.*	Ignition switch off
P0101	Mass or Volume Air Flow Circuit	The engine power is limited.	Ignition switch off
P0102	Mass or Volume Air Flow Circuit Low Input	The engine power is limited.	Pass condition detected
P0103	Mass or Volume Air Flow Circuit High Input	The engine power is limited.	Pass condition detected
P0107	Manifold Absolute Pressure/Barometric Pressure Circuit Low Input	The turbo pressure is fixed at a specified value.	Pass condition detected
P0108	Manifold Absolute Pressure/Barometric Pressure Circuit High Input	The turbo pressure is fixed at a specified value.	Pass condition detected
P0112	Intake Air Temperature Circuit Low Input	The intake air temperature value is fixed.	Pass condition detected
P0113	Intake Air Temperature Circuit High Input	The intake air temperature value is fixed.	Pass condition detected
P0115	Engine Coolant Temperature Circuit	The engine coolant temperature sensor output is fixed at a specified value (the fixed value varies depending on conditions).	Pass condition detected
P0117	Engine Coolant Temperature Circuit Low Input	The engine coolant temperature sensor output is fixed at a specified value (the fixed value varies depending on conditions).	Pass condition detected
P0118	Engine Coolant Temperature Circuit High Input	The engine coolant temperature sensor output is fixed at a specified value (the fixed value varies depending on conditions).	Pass condition detected
P0122	Throttle/Pedal Position Sensor/Switch "A" Circuit Low Input	The engine power is limited.	Ignition switch off
P0123	Throttle/Pedal Position Sensor/Switch "A" Circuit High Input	The engine power is limited.	Ignition switch off
P0168	Fuel Temperature Too High	The injection volume and maximum injection volume are reduced.	Pass condition detected
P0180	Fuel Temperature Sensor "A" Circuit	The fuel temperature is fixed at a specified value.	Pass condition detected
P0182	Fuel Temperature Sensor "A" Circuit Low Input	The fuel temperature is fixed at a specified value.	Pass condition detected
P0183	Fuel Temperature Sensor "A" Circuit High Input [Fuel temperature sensor high input]	The fuel temperature is fixed at a specified value.	Pass condition detected
P0190	Fuel Rail Pressure Sensor Circuit	The main and sub circuits of the fuel pressure sensor are malfunctioning: The engine power is reduced by 90%.* The main or sub circuit of the fuel pressure sensor is malfunctioning: The engine power is limited.	Ignition switch off
P0191	Fuel Rail Pressure Sensor Circuit Range / Performance	The main and sub circuits of the fuel pressure sensor are malfunctioning: The engine power is reduced by 90%.* The main or sub circuit of the fuel pressure sensor is malfunctioning: The engine power is limited.	Ignition switch off
P0192	Fuel Rail Pressure Sensor Circuit Low Input	The main and sub circuits of the fuel pressure sensor are malfunctioning: The engine power is reduced by 90%.* The main or sub circuit of the fuel pressure sensor is malfunctioning: The engine power is limited.	Ignition switch off
P0193	Fuel Rail Pressure Sensor Circuit High Input	The main and sub circuits of the fuel pressure sensor are malfunctioning: The engine power is reduced by 90%.* The main or sub circuit of the fuel pressure sensor is malfunctioning: The engine power is limited.	Ignition switch off
P0200	Fuel Injector Driver Circuit Performance Bank 1	1 malfunctioning cylinder is detected: The engine power is limited. 2 or more malfunctioning cylinders are detected: The engine is stalled.	Ignition switch off
P0234	Turbocharger / Supercharger Overboost Condition	The engine power is limited.	Pass condition detected
P0335	Crankshaft Position Sensor "A" Circuit	The engine power is reduced by 90%.*	Pass condition detected
P0340	Camshaft Position Sensor "A" Circuit (Bank 1 or Single Sensor)	The engine power is reduced by 90%.*	Pass condition detected
P0400	Exhaust Gas Recirculation Flow	The engine power is limited.	Ignition switch off
P0405	Exhaust Gas Recirculation Sensor "A" Circuit Low	The engine power is limited.	Ignition switch off
P0406	Exhaust Gas Recirculation Sensor "A" Circuit High	The engine power is limited.	Ignition switch off
P0488	Exhaust Gas Recirculation Throttle Position Control Range/Performance	The engine power is limited.	Ignition switch off
P0489	Exhaust Gas Recirculation Control Circuit Low	The engine power is limited.	Ignition switch off
P0490	Exhaust Gas Recirculation Control Circuit High	The engine power is limited.	Ignition switch off
P0500	Vehicle Speed Sensor "A"	The vehicle speed is fixed at 0 km/h (0 mph).	Pass condition detected
P0606	ECM / PCM Processor	The engine power is reduced by 90%.*	Pass condition detected
P060A	Internal Control Module Monitoring Processor Performance	The engine power is reduced by 90%.*	Pass condition detected
P0627	Fuel Pump Control Circuit / Open	The engine power is limited.	Pass condition detected
P1229	Fuel Pump System	The engine power is limited.	Ignition switch off
P1251	Turbocharger / Supercharger Overboost Condition (Too High)	The engine power is limited.	Ignition switch off
P1271	Fuel Regulator Circuit Malfunction (EDU Drive)	The engine power is limited.	Ignition switch off
P1272	Fuel Pressure Regulator Malfunction	The engine power is limited.	Ignition switch off
P1496	Intake Air Temperature Sensor 1 Circuit Low	The intake air temperature is fixed at a specified value.	Pass condition detected
P1497	Intake Air Temperature Sensor 1 Circuit High	The intake air temperature is fixed at a specified value.	Pass condition detected
P2120	Throttle/Pedal Position Sensor/Switch "D" Circuit	The engine power is limited.	Ignition switch off
P2121	Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance	The engine power is limited.	Ignition switch off
P2122	Throttle/Pedal Position Sensor/Switch "D" Circuit Low Input	The engine power is limited.	Ignition switch off
P2123	Throttle/Pedal Position Sensor/Switch "D" Circuit High Input	The engine power is limited.	Ignition switch off
P2125	Throttle/Pedal Position Sensor/Switch "E" Circuit	The engine power is limited.	Ignition switch off
P2127	Throttle/Pedal Position Sensor/Switch "E" Circuit Low Input	The engine power is limited.	Ignition switch off
P2128	Throttle/Pedal Position Sensor/Switch "E" Circuit High Input	The engine power is limited.	Ignition switch off
P2138	Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation	The engine power is limited.	Ignition switch off
P2141	Diesel Throttle Motor Circuit Low	The engine power is limited.	Ignition switch off
P2142	Diesel Throttle Motor Circuit High	The engine power is limited.	Ignition switch off
P2226	Barometric Pressure Circuit	The atmospheric pressure is fixed at a specified value.	Pass condition detected
P2228	Barometric Pressure Circuit Low Input	The atmospheric pressure is fixed at a specified value.	Pass condition detected
P2229	Barometric Pressure Circuit High Input	The atmospheric pressure is fixed at a specified value.	Pass condition detected

[Doug32 Member Find all posts View Profile Close Doug32]

Hi Doug,

As requested , this is the Failsafe list for the 1KD-FTV with EGR Cooler, headings don't copy without stuffing the formatting for the rest but are DTC No, Detection Item, Failsafe Operation, Failsafe Deactivation Condition. Many will most likely be same or similar to the 1GD version.

Thanks for providing this info Ptommo59, I am sure other members will also find it useful.
Regards, Doug.