Jeep Grand Cherokee WK. Manual — part 461
B2218, B2219–DOOR MODULE INTERNAL – DOOR MODULE
For the Power Door Lock circuit diagram (Refer to 8 - ELECTRICAL/POWER LOCKS - SCHEMATICS AND DIA-
GRAMS)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
At all times
•
Set Condition:
Whenever the module detects an EEPROM failure
POSSIBLE CAUSES
DOOR MODULE
Diagnostic Test
1.
Replace the Door Module
NOTE: Anytime this code is logged, the module must be replaced.
Repair
Replace the appropriate Door Module.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
8N - 4
POWER LOCKS - ELECTRICAL DIAGNOSTICS
WK
B1801 DRIVER DOOR LOCK/UNLOCK SWITCH INPUT CIRCUIT LOW – CLUSTER
WK
POWER LOCKS - ELECTRICAL DIAGNOSTICS
8N - 5
B1801 DRIVER DOOR LOCK/UNLOCK SWITCH INPUT CIRCUIT LOW – CLUSTER (CONTINUED)
For the Power Door Lock circuit diagram (Refer to 8 - ELECTRICAL/POWER LOCKS - SCHEMATICS AND DIA-
GRAMS)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Continuously
•
Set Condition:
When the Driver Door Lock Switch Mux circuit is below 1.5 volts for over 10 seconds.
Possible Causes
(G161) DRIVER DOOR LOCK SWITCH MUX CIRCUIT SHORT TO GROUND
DOOR LOCK SWITCH SHORT TO GROUND
INSTRUMENT CLUSTER
Theory of Operation
This code will only set in vehicles that do not have the Memory System.
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
With the scan tool, record and erase DTC’s
Operate the Driver Door Lock Switch in all positions several times.
Cycle the ignition from on to off 3 times.
Turn the ignition on.
With the scan tool, read DTC’s.
Does the scan tool display DRIVER DOOR LOCK/UNLOCK SWITCH INPUT CIRCUIT LOW?
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. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
2.
DOOR LOCK SWITCH SHORTED
With the scan tool, erase DTC’s.
Disconnect the Driver Window/Door Lock Switch connector.
With the scan tool, read DTC’s.
Does the scan tool display DRIVER DOOR LOCK/UNLOCK
SWITCH INPUT CIRCUIT LOW?
No
>> Replace the Driver Window/Door Lock Switch.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE)
Yes
>> Go To 3
8N - 6
POWER LOCKS - ELECTRICAL DIAGNOSTICS
WK
B1801 DRIVER DOOR LOCK/UNLOCK SWITCH INPUT CIRCUIT LOW – CLUSTER (CONTINUED)
3.
DRIVER DOOR LOCK SWITCH MUX CIRCUIT SHORT TO GROUND
Turn the ignition off.
Disconnect the Cluster C3 connector.
Measure the resistance between ground and the (G161) Driver Door
Lock Switch Mux circuit.
Is the resistance below 10000.0 ohms?
Yes
>> Repair the (G161) Driver Door Lock Switch Mux circuit for
a short to ground.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE)
No
>> Replace the Instrument Cluster.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE)
WK
POWER LOCKS - ELECTRICAL DIAGNOSTICS
8N - 7
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