P2120-Acc Pedal Position Sensor 1 Ckt Plausibility; P2120-Acc Pedal Position Sensor 1 Ckt Plausibility With Brake; Switch; P2120-Acc Pedal Position Sensor 1 Ckt Signal Voltage Too High - DaimlerChrysler Jeep Grand Cherokee 2002 Service Manual

Symptom List:

P2120-ACC PEDAL POSITION SENSOR 1 CKT PLAUSIBILITY

P2120-ACC PEDAL POSITION SENSOR 1 CKT PLAUSIBILITY
WITH BRAKE SWITCH
P2120-ACC PEDAL POSITION SENSOR 1 CKT SIGNAL VOLTAGE
TOO HIGH
P2120-ACC PEDAL POSITION SENSOR 1 CKT SIGNAL VOLTAGE
TOO LOW
P2120-ACC PEDAL POSITION SENSOR 1 CKT SUPPLY VOLTAGE
TOO HIGH OR LOW

P2125-ACC PEDAL POSITION SENSOR 2 CIRCUIT PLAUSIBILITY

(WITH SENSOR 1 CIRCUIT)

P2125-ACC PEDAL POSITION SENSOR 2 CKT SIGNAL VOLTAGE
TOO HIGH
P2125-ACC PEDAL POSITION SENSOR 2 CKT SUPPLY VOLTAGE
TOO HIGH OR LOW
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be P2120-ACC PEDAL POSITION
SENSOR 1 CKT PLAUSIBILITY.
When Monitored and Set Condition:
P2120-ACC PEDAL POSITION SENSOR 1 CKT PLAUSIBILITY
When Monitored: With the ignition on.
Set Condition: The Accelerator Pedal Position Sensor Signal is below 1.6% or above 17.6%
and the idle switch is not in the correct state. NOTE: The idle switch is designed to
transition when the accel position is approximately 16% (1.00 volt). This code sets the ECM
to Limp-in Mode, which includes a fixed engine speed of 1100 RPM.

P2120-ACC PEDAL POSITION SENSOR 1 CKT PLAUSIBILITY WITH BRAKE

SWITCH

When Monitored: With the engine speed above 700 rpm.
Set Condition: The ECM detects the Accelerator Pedal and the Brake Pedal have been
depressed at the same time for longer than 5.0 seconds.

P2120-ACC PEDAL POSITION SENSOR 1 CKT SIGNAL VOLTAGE TOO HIGH

When Monitored: With the ignition on.
Set Condition: The ECM detects voltage on the Accelerator Pedal Position Sensor Signal
circuit above 4.5 volts.
DRIVEABILITY - DIESEL
205