Jeep Grand Cherokee WK. Manual — part 280
B2232-(PTS) PARKTRONICS INTERNAL
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
The Park Assist Module detects an internal failure.
Possible Causes
PARK ASSIST MODULE
Diagnostic Test
1.
REPLACE THE PARK ASSIST MODULE
View Repair
Repair
Replace the Park Assist Module in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
8B - 46
CHIME/BUZZER - ELECTRICAL DIAGNOSTICS
WK
B2234-(PTS) PARKTRONICS REAR DISPLAY INTERNAL
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
While the vehicle is in reverse for speeds less than 16km/h.
•
Set Condition:
The Park Assist Module detects an internal Park Assist Display failure.
Possible Causes
PARK ASSIST DISPLAY
Diagnostic Test
1.
REPLACE THE PARK ASSIST DISPLAY
View Repair
Repair
Replace the Park Assist Display in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
WK
CHIME/BUZZER - ELECTRICAL DIAGNOSTICS
8B - 47
U0423-IMPLAUSIBLE DATA RECEIVED FROM CLUSTER/CCN
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Park Assist Module supply voltage between 9–16 volts. Ignition in Run/Start.
•
Set Condition:
Ignition status = 7h
Possible Causes
NO COMMUNICATION WITH INSTRUMENT CLUSTER
DTCS STORED OR ACTIVE IN THE INSTRUMENT CLUSTER
ACTIVE DTCS IN THE FCM
PARK ASSIST MODULE
Diagnostic Test
1.
CHECK FOR ACTIVE DTC: U0423-IMPLAUSIBLE DATA RECEIVED FROM CLUSTER/CCN
Turn the ignition on.
With the scan tool, record and erase Park Assist Module DTCs.
Wait 30 seconds.
With the scan tool, read Park Assist Module DTCs.
Is DTC: U0423-IMPLAUSIBLE DATA RECEIVED FROM CLUSTER/CCN active?
Yes
>> Go To 2
No
>> The condition that caused this code to set is not present at this time. Check for an intermittent condition
by inspecting the related wiring harness for chaffed, pierced, pinched, and partially broken wires. Also
inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated termi-
nals.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
2.
INSTRUMENT CLUSTER IS ACTIVE ON THE CAN B BUS
With the scan tool, select ECU View.
Verify that the Instrument Cluster is active on the bus.
Is the Instrument Cluster active on the bus?
Yes
>> Go To 3
No
>> (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING) for No
Response diagnostic procedures.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
8B - 48
CHIME/BUZZER - ELECTRICAL DIAGNOSTICS
WK
U0423-IMPLAUSIBLE DATA RECEIVED FROM CLUSTER/CCN (CONTINUED)
3.
DTCS STORED OR ACTIVE IN THE INSTRUMENT CLUSTER
Check for Ignition Switch DTCs in the Instrument Cluster.
Are any DTCs active or stored in the Instrument Cluster?
Yes
>> Refer to the appropriate section and perform the diagnostics for the DTCs.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
No
>> Go to 4
4.
ACTIVE DTCS IN THE FCM
With the scan tool, select ECU View and select FCM.
With the scan tool, read active DTCs.
Are any Communication DTCs active in the FCM Park Assist System?
Yes
>> Refer to the appropriate section and perform the diagnostics for the DTCs.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE).
No
>> Replace and program the Park Assist Module in accordance with the Service Information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
WK
CHIME/BUZZER - ELECTRICAL DIAGNOSTICS
8B - 49
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