POSSIBLE CAUSES
PARK ASSIST SENSOR
PARK ASSIST MODULE
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 6
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.
Turn the ignition on.
Measure the resistance between ground and the Sensor signal circuit.
Is the resistance below 5.0 ohms?
All
Yes
→ Repair the Sensor Signal circuit for an short to ground.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 3
3
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 Park Assist Sensor signal circuit.
Is the resistance above 5.0 ohms?
All
Yes
→ Repair the Park Assist Sensor signal circuit for an open.
Perform BODY VERIFICATION TEST - VER 1.
No
→ Go To 4
785
PARK ASSIST SYSTEM
SENSOR 1 SIGNAL OR BATTERY CIRCUIT OPEN OR SHORT TO
GROUND —
Continued