Perform the following diagnostic procedure: “Analog Throttle Position Sensor Circuit - Test”
Results:
•
OK – STOP.i03450160
CID 0091 FMI 03
Conditions Which Generate This Code:
The Electronic Control Module (ECM) detects the following conditions:
•
ECM has been powered for at least 3 seconds.•
A signal voltage for the throttle position is above the diagnostic upper limit that is set for the application.•
The power supply for the throttle sensor is within the expected range.System Response:
If equipped, the warning light will come on. The ECM logs the diagnostic code if the engine is running.
Possible Performance Effect:
If a second throttle is installed, the engine will use the second throttle until the fault is repaired.
If a second throttle is not installed or if the second throttle has a fault, the following conditions will occur:
•
The engine will default to the limp home speed.•
If the engine speed is higher than the limp home speed, the engine will decelerate to the limp home speed.•
If the engine speed is lower than the limp home speed, the engine speed will remain at the current speed.•
The engine will remain at this speed while the diagnostic code remains active.•
All inputs from the faulty throttle are ignored by the ECM until the fault is repaired.This document is printed from SPI². Not for RESALE
•
All inputs from the repaired throttle will be ignored by the ECM until the keyswitch has been turned to the OFF position and then back to the ON position.Troubleshooting:
Monitor the configuration screen on the electronic service tool in order to determine the type of throttle position sensor that is used on the engine.
If the engine is equipped with an analog throttle position sensor, proceed to “Test Step 1”.
If the engine is equipped with a digital throttle position sensor, proceed to “Test Step 2”.
Test Step 1.
Perform the following diagnostic procedure: “Analog Throttle Position Sensor Circuit - Test”
Results:
•
OK – STOP.Test Step 2.
Perform the following diagnostic procedure: “Digital Throttle Position Sensor Circuit - Test”
Results:
•
OK – STOP.i03450189
CID 0091 FMI 04
Conditions Which Generate This Code:
The Electronic Control Module (ECM) detects all of the following conditions:
•
The ECM has been powered for at least 3 seconds.•
A signal voltage for the throttle position is below the diagnostic lower limit that is set for the application.•
The power supply for the throttle sensor is within the expected range.System Response:
If equipped, the warning light will come on. The ECM logs the diagnostic code if the engine is running.
Possible Performance Effect:
If a second throttle is installed, the engine will use the second throttle until the fault is repaired.
If a second throttle is not installed or if the second throttle has a fault, the following conditions will occur:
•
The engine will default to the limp home speed.•
If the engine speed is higher than the limp home speed, the engine will decelerate to the limp home speed.•
If the engine speed is lower than the limp home speed, the engine speed will remain at the current speed.•
The engine will remain at this speed while the diagnostic code remains active.•
All inputs from the faulty throttle are ignored by the ECM until the fault is repaired.•
All inputs from the repaired throttle will be ignored by the ECM until the keyswitch has been turned to the OFF position and then back to the ON position.Troubleshooting:
Monitor the configuration screen on the electronic service tool in order to determine the type of throttle position sensor that is used on the engine.
If the engine is equipped with an analog throttle position sensor, proceed to “Test Step 1”.
If the engine is equipped with a digital throttle position sensor, proceed to “Test Step 2”.
Test Step 1.
Perform the following diagnostic procedure: “Analog Throttle Position Sensor Circuit - Test”
Results:
•
OK – STOP.Test Step 2.
Perform the following diagnostic procedure: “Digital Throttle Position Sensor Circuit - Test”
Results:
This document is printed from SPI². Not for RESALE
i03450383
CID 0091 FMI 08
Conditions Which Generate This Code:
The Electronic Control Module (ECM) detects the following conditions:
•
The signal frequency from the accelerator pedal position sensor is less than 150 Hz or the signal frequency is greater than 1050 Hz for more than two seconds.•
The ECM has been powered for at least three seconds.•
Diagnostic code 0091-03 is not active.•
Diagnostic code 0091-04 is not active.•
Diagnostic codes for the 8 Volt sensor supplies are not active.System Response:
Limp home mode is activated.
The ECM sets the “Throttle Position” to “0%”. If equipped, the warning light will be on. The diagnostic code will be logged if the engine is running. The diagnostic code will not be logged if the engine is cranking.
Possible Performance Effect:
If a second throttle is installed, the engine will use the second throttle until the fault is repaired.
If a second throttle is not installed or if the second throttle has a fault, the following conditions will occur:
•
The engine will default to the limp home speed.•
If the engine speed is higher than the limp home speed, the engine will decelerate to the limp home speed.•
If the engine speed is lower than the limp home speed, the engine speed will remain at the current speed.•
The engine will remain at this speed while the diagnostic code remains active.•
All inputs from the faulty throttle are ignored by the ECM until the fault is repaired.•
All inputs from the repaired throttle will be ignored by the ECM until the keyswitch has been turned to the OFF position and then back to the ON position.Troubleshooting:
This diagnostic code indicates that the frequency of a digital throttle signal is out of the normal range. Perform the following diagnostic procedure: “Digital Throttle Position Sensor Circuit - Test”
Results:
•
OK – STOP.i02655609