Jeep Liberty KJ. Manual — part 852
7.
SENSOR GROUND OPEN
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the Sensor Ground circuit between the APP
Sensor and the ECM.
Is the resistance below 10.0 ohms?
Yes
>> Go To 8
No
>> Repair the APP Sensor Ground circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
8.
ECM - SENSOR GROUND OPEN
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Using a 12-volt test light connected to 12-volts, check the Sensor
Ground circuit of the appropriate potentiometer.
Does the test light illuminate brightly?
Yes
>> Replace the Accelerator Pedal Position Sensor.
Perform ROAD TEST VERIFICATION - VER-2.
No
>> Replace and program the Engine Control Module in accor-
dance with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
9 - 1366
ENGINE DIESEL DIAG
KJ
9.
APP SENSOR SIGNAL CIRCUIT OPEN
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the APP Sensor Signal circuit.
Is the resistance below 10.0 ohms?
Yes
>> Go To 10
No
>> Repair the APP Sensor Signal circuit for an open
Perform ROAD TEST VERIFICATION - VER-2.
10.
APP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between ground and the APP Sensor Signal cir-
cuit.
Is the resistance below 1000 ohms?
Yes
>> Repair the APP Sensor Signal circuit for a short to ground.
Perform ROAD TEST VERIFICATION - VER-2.
No
>> Go To 11
KJ
ENGINE DIESEL DIAG
9 - 1367
11.
APP SENSOR SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between the APP Sensor Signal circuit and the
Sensor Ground circuit at the APP Sensor harness connector.
Is the resistance below 1000 ohms?
Yes
>> Repair the APP Sensor Signal and Sensor Ground circuits
for a short together.
Perform ROAD TEST VERIFICATION - VER-2.
No
>> Go To 12
12.
APP SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Remove the ASD Relay.
Connect a jumper wire between cavity 30 and cavity 87 of the ASD
Relay connector.
Turn the ignition on.
Measure the voltage of the APP Sensor Signal circuit.
Is the voltage above 1.0 volt?
Yes
>> Repair the APP Sensor Signal circuit for a short to voltage.
Perform ROAD TEST VERIFICATION - VER-2.
No
>> Replace and program the Engine Control Module in accor-
dance with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
9 - 1368
ENGINE DIESEL DIAG
KJ
13.
APP SENSOR 5-VOLT SUPPLY CIRCUITS OPEN
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance of the Accelerator Pedal Position Sensor 5-volt
Supply circuit.
Is the resistance below 10.0 ohms?
Yes
>> Go To 14
No
>> Repair the Accelerator Pedal Position Sensor 5-Volt Supply
circuit for an open.
Perform ROAD TEST VERIFICATION - VER-2.
14.
APP SENSOR 5-VOLT SUPPLY CIRCUIT SHORTED TO SENSOR GROUND
Turn the ignition off.
Disconnect the APP Sensor harness connector.
Disconnect the ECM harness connectors.
Measure the resistance between the Accelerator Pedal Position Sensor
5-Volt Supply circuit and both Sensor Ground circuits in the APP Sensor
harness connector.
Is the resistance above 1000 ohms?
Yes
>> Go To 15
No
>> Repair the 5-Volt Supply circuit for a short to the Sensor
Ground circuit.
Perform ROAD TEST VERIFICATION - VER-2.
KJ
ENGINE DIESEL DIAG
9 - 1369
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст