Chrysler RG Voyager. Manual — part 235
TEST
ACTION
APPLICABILITY
1
NOTE: Make sure that the rear bumper is free of dirt and debris to keep the
system operating properly.
NOTE: Jackhammers, large trucks, and other vibrations could affect the
performance of the system.
With the DRBIII
t, Erase DTCs.
Cycle the ignition off for at least 1 minute.
Use the Service Information as a guide to activate the Park Assist System. Move an
object into range of the Sensor that set this DTC.
Turn the ignition on.
With the brake applied, move the gear selector to the neutral position.
NOTE: The system is active only when the vehicle is in reverse or neutral for
vehicle speeds less than 16 Kmh (10 mph). If the vehicle Parking/Emergency
Brake is applied, the system is deactivated.
With the DRBIII
t under Inputs/Outputs, read the Sensors input state. The state
must indicate
9Active9 for the diagnostic to run.
With the DRBIII
t, read DTCs.
Does this DTC reset?
All
Yes
→ Go To 2
No
→ Go To 3
2
The Park Assist Module has detected a Park Assist Sensor failure.
Use the chart below to identify the sensor:
Sensor 1 is the rear outer right sensor.
Sensor 2 is the rear inner right sensor.
Sensor 3 is the rear inner left sensor.
Sensor 4 is the rear outer left sensor.
Replace the applicable Sensor in accordance with the Service information.
With the DRBIII
t, Erase DTCs.
Cycle the ignition off for at least one minute.
Use the Service Information as a guide to activate the Park Assist System. Move an
object into range of the Sensor that was replaced.
Turn the ignition on.
With the brake applied, move the gear selector to the neutral position.
NOTE: The system is active only when the vehicle is in reverse or neutral for
vehicle speeds less than 16 Kmh (10 mph). If the vehicle Parking/Emergency
Brake is applied, the system is deactivated.
With the DRBIII
t under Inputs/Outputs, read the Sensors input state. The state
must indicate
9Active9 for the diagnostic to run.
With the DRBIII
t, read DTCs.
Does this DTC reset?
All
Yes
→ Replace the Park Assist Module in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
3
The conditions necessary to set this DTC are not present at this time.
Using the wiring diagrams/schematics as a guide, inspect the wiring and connectors.
While monitoring the DRBIII
t data relative to this circuit, wiggle test the wiring and
connectors.
Look for the data to change or for the DTC to reset during the wiggle test.
Were any problems found?
All
Yes
→ Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
909
PARK ASSIST SYSTEM
SENSOR 1 FAILURE —
Continued
Symptom List:
SENSOR 1 GROUND CIRCUIT OPEN
SENSOR 2 GROUND CIRCUIT OPEN
SENSOR 3 GROUND CIRCUIT OPEN
SENSOR 4 GROUND CIRCUIT OPEN
Test Note:
All symptoms listed above are diagnosed using the same tests.
The title for the tests will be SENSOR 1 GROUND CIRCUIT
OPEN.
When Monitored and Set Condition:
SENSOR 1 GROUND CIRCUIT OPEN
When Monitored:
With rear sensors active.
Set Condition:
An open in the Sensor 1 ground circuit is detected.
SENSOR 2 GROUND CIRCUIT OPEN
When Monitored:
With rear sensors active.
Set Condition:
An open in the Sensor 2 ground circuit is detected.
SENSOR 3 GROUND CIRCUIT OPEN
When Monitored:
With rear sensors active.
Set Condition:
An open in the Sensor 3 ground circuit is detected.
SENSOR 4 GROUND CIRCUIT OPEN
When Monitored:
With rear sensors active.
Set Condition:
An open in the Sensor 4 ground circuit is detected.
POSSIBLE CAUSES
INTERMITTENT CONDITION
SENSOR GROUND CIRCUIT OPEN
PARK ASSIST SENSOR
PARK ASSIST MODULE
910
PARK ASSIST SYSTEM
TEST
ACTION
APPLICABILITY
1
NOTE: Make sure that the rear bumper is free of dirt and debris to keep the
system operating properly.
NOTE: Jackhammers, large trucks, and other vibrations could affect the
performance of the system.
With the DRBIII
t, Erase DTCs.
Cycle the ignition off for at least 1 minute.
Use the Service Information as a guide to activate the Park Assist System. Move an
object into range of the Sensor that set this DTC.
Turn the ignition on.
With the brake applied, move the gear selector to the neutral position.
NOTE: The system is active only when the vehicle is in reverse or neutral for
vehicle speeds less than 16 Kmh (10 mph). If the vehicle Parking/Emergency
Brake is applied, the system is deactivated.
With the DRBIII
t under Inputs/Outputs, read the Sensors input state. The state
must indicate
9Active9 for the diagnostic to run.
With the DRBIII
t, read DTCs.
Does this DTC reset?
All
Yes
→ Go To 2
No
→ Go To 4
2
Turn the ignition off.
Disconnect the Park Assist Module harness connector.
Use the chart below to identify the sensor:
Sensor 1 is the rear outer right sensor.
Sensor 2 is the rear inner right sensor.
Sensor 3 is the rear inner left sensor.
Sensor 4 is the rear outer left sensor.
Disconnect the Park Assist Sensor harness connector.
Measure the resistance of the Sensor ground circuit.
Is the resistance above 5.0 ohms?
All
Yes
→ Repair the Sensor ground circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
911
PARK ASSIST SYSTEM
SENSOR 1 GROUND CIRCUIT OPEN —
Continued
TEST
ACTION
APPLICABILITY
3
Use the chart below to identify the sensor:
Sensor 1 is the rear outer right sensor.
Sensor 2 is the rear inner right sensor.
Sensor 3 is the rear inner left sensor.
Sensor 4 is the rear outer left sensor.
Replace the applicable Sensor in accordance with the Service information.
With the DRBIII
t, Erase DTCs.
Cycle the ignition off for at least one minute.
Use the Service Information as a guide to activate the Park Assist System. Move an
object into range of the Sensor that was replaced.
Turn the ignition on.
With the brake applied, move the gear selector to the neutral position.
NOTE: The system is active only when the vehicle is in reverse or neutral for
vehicle speeds less than 16 Kmh (10 mph). If the vehicle Parking/Emergency
Brake is applied, the system is deactivated.
With the DRBIII
t under Inputs/Outputs, read the Sensors input state. The state
must indicate
9Active9 for the diagnostic to run.
With the DRBIII
t, read DTCs.
Does this DTC reset?
All
Yes
→ Replace the Park Assist Module in accordance with the Service
Information.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
4
The conditions necessary to set this DTC are not present at this time.
Using the wiring diagrams/schematics as a guide, inspect the wiring and connectors.
While monitoring the DRBIII
t data relative to this circuit, wiggle test the wiring and
connectors.
Look for the data to change or for the DTC to reset during the wiggle test.
Were any problems found?
All
Yes
→ Repair as necessary.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Test Complete.
912
PARK ASSIST SYSTEM
SENSOR 1 GROUND CIRCUIT OPEN —
Continued
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