Dodge Caliber. Manual - part 874
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When Monitored:
With the ignition on and battery voltage greater than 10.4 volts.
•
Set Condition:
The PCM detects that the (K23) APP Signal 1 circuit is shorted low.
Possible Causes
INTERMITTENT DTC
(F856) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND
(K23) APP SIGNAL 1 CIRCUIT SHORTED TO GROUND
(F856) 5 VOLT SUPPLY CIRCUIT SHORTED TO (K167) SENSOR GROUND CIRCUIT
(F856) 5 VOLT SUPPLY CIRCUIT SHORTED TO (K400) SENSOR GROUND CIRCUIT
(K23) APP SIGNAL 1 CIRCUIT SHORTED TO (K167) SENSOR GROUND CIRCUIT
(K23) APP SIGNAL 1 CIRCUIT SHORTED TO (K400) SENSOR GROUND CIRCUIT
(F856) 5 VOLT SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE
(K23) APP SIGNAL 1 CIRCUIT OPEN OR HIGH RESISTANCE
ACCELERATOR PEDAL POSITION SENSOR
POWERTRAIN CONTROL MODULE (PCM)
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
Diagnostic Test
1.
DTC IS ACTIVE
Ignition on, engine not running.
NOTE: Diagnose and repair any system voltage or sensor supply voltage DTCs before continuing with this
test.
With the scan tool, select View DTCs.
Is the status Active for this DTC?
Yes
>> Go to 2
No
>> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE -
DIAGNOSIS AND TESTING)
2.
(F856) 5 VOLT SUPPLY CIRCUIT VOLTAGE
Turn the ignition off.
Disconnect the Accelerator Pedal Position Sensor connector.
Turn the ignition on.
Measure the voltage of the (F856) 5 Volt Supply circuit in the Acceler-
ator Pedal Position Sensor harness connector.
Is the voltage above 4.5 volts?
Yes
>> Go to 6
No
>> Go to 3
PM
ENGINE ELECTRICAL DIAGNOSTICS - GPEC
9 - 783