Jeep Grand Cherokee WK. Manual — part 383
B10BC-RIGHT HEATED SEAT SWITCH INPUT CIRCUIT STUCK (CONTINUED)
For the Heated Seat System circuit diagram (Refer to 8 - ELECTRICAL/HEATED SEATS - SCHEMATICS AND DIA-
GRAMS)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:Ignition on.
•
Set Condition:This code is set whenever the Cluster detects a stuck heated seat switch.
Possible Causes
(P366) RIGHT HEATED SEAT SWITCH SENSE PARTIALLY SHORTED TO GROUND
LOWER SWITCH BANK
CLUSTER
Diagnostic Test
1.
VERIFY THAT DTC B10BC-RIGHT HEATED SEAT SWITCH INPUT CIRCUIT STUCK IS ACTIVE
With the scan tool, record and erase DTC’s
Cycle the ignition switch off then back on.
With the scan tool, read DTC’s.
Does the DTC B10BC RIGHT HEATED SEAT SWITCH INPUT CIRCUIT STUCK reset?
Yes
>> Go To 2
No
>> The conditions that caused this code to set are not present at this time. Using the wiring diagram/sche-
matic as a guide, inspect the wiring and connectors.
Perform BODY VERIFICATION TEST – VER 1.
2.
HEATED SEAT SWITCH
With the scan tool, record and erase DTC’s
Disconnect the lower switch bank.
Cycle the ignition switch off then back on.
With the scan tool, read DTC’s.
Does the DTC B10BC RIGHT HEATED SEAT SWITCH INPUT CIRCUIT STUCK reset?
Yes
>> Go To 3
No
>> Replace the lower switch bank.
Perform BODY VERIFICATION TEST – VER 1.
8G - 38
HEATED SEATS - ELECTRICAL DIAGNOSTICS
WK
B10BC-RIGHT HEATED SEAT SWITCH INPUT CIRCUIT STUCK (CONTINUED)
3.
CHECK THE (P366) RIGHT HEATED SEAT SWITCH SENSE CIRCUIT FOR A PARTIAL SHORT TO
GROUND
Disconnect the Cluster C3 connector.
Measure the resistance between ground and the (P366) Right Heated
Seat Switch Sense circuit.
Was the resistance below 10K ohms?
Yes
>> Repair the (P366) Right Heated Seat Switch Sense circuit
for a short to ground.
Perform BODY VERIFICATION TEST – VER 1.
No
>> Replace the Cluster.
Perform BODY VERIFICATION TEST – VER 1.
WK
HEATED SEATS - ELECTRICAL DIAGNOSTICS
8G - 39
B210D-BATTERY VOLTAGE LOW
8G - 40
HEATED SEATS - ELECTRICAL DIAGNOSTICS
WK
B210D-BATTERY VOLTAGE LOW (CONTINUED)
For the Heated Seat System circuit diagram (Refer to 8 - ELECTRICAL/HEATED SEATS - SCHEMATICS AND DIA-
GRAMS)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:Engine running, during heated seat operation.
•
Set Condition:This code is set immediately after the Heated Seat Module receives a low charging system
voltage message over the CAN B Bus or detects voltage under 11.3 volts on the (A33) Fused B(+) circuit.
Possible Causes
CHARGING SYSTEM VOLAGE LOW
(A33) FUSED B(+) CIRCUIT
HEATED SEAT MODULE
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.
Diagnostic Test
1.
CHECK PCM FOR CHARGING SYSTEM DTC
With the scan tool, read Powertrain Control Module DTC’s.
Are there any Charging System DTC’s set in the Powertrain Control Module?
Yes
>> (Refer to 8 - ELECTRICAL/CHARGING - DIAGNOSIS AND TESTING) for Charging System diagnostic
procedures.
No
>> Go To 2
Perform BODY VERIFICATION TEST – VER 1.
2.
VERIFY THAT DTC B210D-BATTERY VOLTAGE LOW IS ACTIVE
With the scan tool, record and erase DTC’s
Turn the ignition switch to the Off position then start the engine and let run for one minute.
With the scan tool, read DTC’s.
Does the DTC B210D-BATTERY VOLTAGE LOW reset?
Yes
>> Go To 3
No
>> The conditions that caused this code to set are not present at this time. Using the wiring diagram/sche-
matic as a guide, inspect the wiring and connectors.
Perform BODY VERIFICATION TEST – VER 1.
WK
HEATED SEATS - ELECTRICAL DIAGNOSTICS
8G - 41
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