Code No. P2138:
Accelerator Pedal Position Sensor (Main)/(Sub) Correlation
DIAGNOSIS CONTENT
Voltage deviation between accelerator pedal position sensor (main) and accelerator pedal
position sensor (sub) voltage too high.
TROUBLE JUDGMENT
Check Conditions
Accelerator pedal position sensor (main) output voltage is above the specified value.
Accelerator pedal position sensor (sub) output voltage is above the specified value.
Judgment Criterion
The amount of the difference from the half signal voltage of accelerator pedal position
sensor (main) and signal voltage of accelerator pedal position sensor (sub) is greater than
the threshold.
FAIL SAFE FUNCTION
Emergency run
PROBABLE CAUSE
Failed accelerator pedal position sensor (main)
Failed accelerator pedal position sensor (sub)
Failed electrical harness in accelerator pedal position sensor circuit
(Refer to Symptom Procedure - Accelerator Pedal Position Sensor (main) System ,
Accelerator Pedal Position Sensor (sub) System .)
