Diagnostic Trouble Code (DTC) Information

ECM-9540 ACCELERATOR PEDAL (AP) POSITION SENSOR, POWER SUPPLY 5V
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION




Condition
Diagnostic trouble code (DTC) ECM-9540 is stored in the engine control module (ECM) if the engine control module (ECM) registers a fault in the 5V power supply to the accelerator pedal (AP) position sensor

Condition
- slower throttle opening than requested throttle opening
- throttle closure when braking

Possible source

Signal too high
- short-circuit to supply voltage in the signal cable

Signal too low
- short-circuit to ground in the signal cable
- open-circuit in signal cable

Condition
- ETS warning lamp lit
- poor accelerator pedal (AP) response