Jeep Grand Cherokee WK. Manual — part 289
VEHICLE ENTERTAINMENT CONTROL
MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
HANDS FREE PHONE MODULE . . . . . . . . . 120
DRIVER DOOR MODULE . . . . . . . . . . . . . . . 123
PASSENGER DOOR MODULE . . . . . . . . . . . 126
HEATED SEAT CONTROL MODULE . . . . . . 129
MEMORY SEAT CONTROL MODULE . . . . . . 132
SCCM - CAN B . . . . . . . . . . . . . . . . . . . . . . 135
U0231-LOST COMMUNICATION WITH RAIN
SENSING MODULE . . . . . . . . . . . . . . . . . . . 138
U0241-LOST COMMUNICATION WITH AUTO
HIGHBEAM HEADLAMP CONTROL
MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
DETECTED . . . . . . . . . . . . . . . . . . . . . . . . . 144
SCCM - CAN C . . . . . . . . . . . . . . . . . . . . . . 146
*STORED LOST COMMUNICATION DTCS
*NO RESPONSE FROM ABS (ANTILOCK
BRAKE MODULE) . . . . . . . . . . . . . . . . . . . . 152
(SMARTBEAM) . . . . . . . . . . . . . . . . . . . . . . . 157
*NO RESPONSE FROM AMP (AMPLIFIER)
*NO RESPONSE FROM CCN (CLUSTER)
MEMORY MIRROR MODULE) . . . . . . . . . . . 167
*NO RESPONSE FROM EOM (ELECTRONIC
OVERHEAD MODULE) . . . . . . . . . . . . . . . . . 170
*NO RESPONSE FROM ESM (SHIFT LEVER
ASSEMBLY) - NAG1/DIESEL . . . . . . . . . . . . 173
CONTROL MODULE) . . . . . . . . . . . . . . . . . . 177
DRIVE CONTROL MODULE) . . . . . . . . . . . . 181
*NO RESPONSE FROM HFM (HANDS FREE
MODULE) . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
SEAT MODULE) . . . . . . . . . . . . . . . . . . . . . . 189
*NO RESPONSE FROM HVAC (A/C HEATER
CONTROL - ATC ONLY) . . . . . . . . . . . . . . . . 192
*NO RESPONSE FROM ITM (INTRUSION
TRANSCEIVER MODULE) . . . . . . . . . . . . . . 196
SENSOR) . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
*NO RESPONSE FROM MSMD (MEMORY
SEAT MODULE) . . . . . . . . . . . . . . . . . . . . . . 201
*NO RESPONSE FROM OCM (OCCUPANT
CLASSIFICATION MODULE) . . . . . . . . . . . . 204
*NO RESPONSE FROM ORC (OCCUPANT
RESTRAINT CONTROLLER) . . . . . . . . . . . . 208
(POWERTRAIN CONTROL MODULE) . . . . . . 212
*NO RESPONSE FROM PDM (PASSENGER
MEMORY MIRROR MODULE) . . . . . . . . . . . 217
*NO RESPONSE FROM PTS (PARK ASSIST
MODULE) . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
*NO RESPONSE FROM SDAR (SATELLITE
RECEIVER) . . . . . . . . . . . . . . . . . . . . . . . . . 226
*NO RESPONSE FROM SCM (STEERING
COLUMN MODULE) . . . . . . . . . . . . . . . . . . . 229
*NO RESPONSE FROM SUNR (SUNROOF
MOTOR/MODULE) . . . . . . . . . . . . . . . . . . . . 232
DIESEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . 235
(POWERTRAIN CONTROL MODULE) -
NGC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239
*NO RESPONSE FROM VES (MONITOR/
DVD MEDIA SYSTEM) . . . . . . . . . . . . . . . . . 242
*NO RESPONSE FROM WCM (SENTRY KEY
REMOTE ENTRY MODULE) . . . . . . . . . . . . . 245
BODY VERIFICATION TEST – VER 1
8E - 2
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
WK
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
DIAGNOSIS AND TESTING
B210D-BATTERY VOLTAGE LOW
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
Battery voltage less than 9 volts for more than 15 seconds.
Possible Causes
RESISTANCE IN THE (A1) BATTERY POSITIVE CIRCUIT
RESISTANCE IN THE GENERATOR CASE GROUND
GENERATOR OPERATION
GENERATOR FIELD CONTROL CIRCUIT OPEN
GENERATOR FIELD CONTROL CIRCUIT SHORTED TO GROUND
GROUND CIRCUIT OPEN
PCM
Diagnostic Test
1.
CHECK FOR ANY POWERTRAIN CONTROL MODULES DTCS
NOTE: Make sure the Battery is in good condition. Using the Midtronics Battery Tester, test the Battery
before continuing.
NOTE: Inspect the vehicle for after market accessories that may exceed the Generator System output.
NOTE: Make sure the generator drive belt is in good operating condition.
NOTE: Inspect the fuses in the IPM. If an open fuse is found, use the wire diagram/schematic as a guide,
inspect the wiring and connectors for damage.
Turn the ignition on.
With the scan tool, read active PCM DTC’s.
Does the scan tool display any active PCM DTC’s?
Yes
>> (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) for the diagnostic test procedure.
No
>> Check the above conditions that can cause a low voltage condition. Repair as necessary.
WK
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 3
B210E-BATTERY VOLTAGE HIGH
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
Battery voltage greater than 16 volts for more than 15 seconds.
Possible Causes
GENERATOR FIELD CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE
GENERATOR
PCM
Diagnostic Test
1.
CHECK FOR ANY POWERTRAIN CONTROL MODULES DTCS
NOTE: Make sure the Battery is in good condition. Using the Midtronics Battery Tester, test the Battery
before continuing.
NOTE: Inspect the vehicle for after market accessories that may exceed the Generator System output.
NOTE: Make sure the generator drive belt is in good operating condition.
NOTE: Inspect the fuses in the IPM. If an open fuse is found, use the wire diagram/schematic as a guide,
inspect the wiring and connectors for damage.
Turn the ignition on.
With the scan tool, read active PCM DTC’s.
Does the scan tool display any active PCM DTC’s?
Yes
>> (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) for the diagnostic test procedure.
No
>> Check the above conditions that can cause a high voltage condition. Repair as necessary.
8E - 4
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
WK
B2112-5 VOLT SUPPLY CIRCUIT LOW (FCM)
WK
ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
8E - 5
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