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DRIVEABILITY - DIESEL
P2120-ACC PEDAL POSITION SENSOR 1 CKT PLAUSIBILITY —
P2120-ACC PEDAL POSITION SENSOR 1 CKT SIGNAL VOLTAGE TOO LOW
When Monitored: With the ignition on.
Set Condition: The ECM detects voltage on the Accelerator Pedal Position Sensor Signal
circuit 0.0 volt.
P2120-ACC PEDAL POSITION SENSOR 1 CKT SUPPLY VOLTAGE TOO HIGH OR
LOW
When Monitored: With the ignition on.
Set Condition: The Accelerator Pedal Position Sensor 5-Volt Supply voltage is above 5.1
volts or below 4.9 volts.
P2125-ACC PEDAL POSITION SENSOR 2 CIRCUIT PLAUSIBILITY (WITH SEN-
SOR 1 CIRCUIT)
When Monitored: With the ignition on.
Set Condition: The ECM determines that the APP Sensor #1 and APP Sensor #2 signals
do not agree.
P2125-ACC PEDAL POSITION SENSOR 2 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 3.3 volts.
P2125-ACC PEDAL POSITION SENSOR 2 CKT SUPPLY VOLTAGE TOO HIGH OR
LOW
When Monitored: With the ignition on.
Set Condition: The Accelerator Pedal Position Sensor 5-Volt Supply voltage is above 5.1
volts or below 4.9 volts.
ACCELERATOR PEDAL POSITION SENSOR
ECM - 5-VOLT SUPPLY CIRCUIT
SENSOR GROUND OPEN (APP SENSOR)
INTERMITTENT CONDITION
5-VOLT SUPPLY OR SENSOR REFERENCE VOLTAGE A CIRCUIT OPEN
APP SENSOR SIGNAL CIRCUIT OPEN
5-VOLT SUP OR SENSOR REF VOLTAGE A CIRCUIT SHORTED TO THE SENSOR GROUND CIR-
CUIT
APP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
5-VOLT SUPPLY OR SENSOR REF VOLTAGE A CIRCUIT SHORTED TO GROUND
POSSIBLE CAUSES
206
Continued
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