Jeep Grand Cherokee WK. Manual — part 288
4. If the bracket (1) holding the sensor (2) is dam-
aged, unclip it from the rear fascia with the sensor
and then separate them.
INSTALLATION
1. If replacing the sensor retaining bracket (1), snap
the sensor (2) into the bracket until it seats fully.
8B - 78
CHIME/BUZZER - SERVICE INFORMATION
WK
2. Position the Park Assist Sensor (1) over the retain-
ing bracket (2) and firmly snap into housing in rear
fascia.
3. Install the rear fascia (Refer to 13 - FRAME & BUMPERS/BUMPERS/REAR FASCIA - INSTALLATION).
4. Connect the battery negative cable.
WK
CHIME/BUZZER - SERVICE INFORMATION
8B - 79
ELECTRONIC CONTROL MODULES
TABLE OF CONTENTS
page
page
ELECTRICAL DIAGNOSTICS. . . . . . . . . . . . . . . . . 1
ELECTRONIC CONTROL MODULES - SERVICE
INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . 250
ELECTRONIC CONTROL MODULES - ELECTRICAL
DIAGNOSTICS
TABLE OF CONTENTS
page
page
ELECTRONIC CONTROL MODULES -
ELECTRICAL DIAGNOSTICS
DIAGNOSIS AND TESTING
B2112-5 VOLT SUPPLY CIRCUIT LOW (FCM)
B2113-5 VOLT SUPPLY CIRCUIT HIGH
(FCM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
B2206-CURRENT VIN MISSING/MISMATCH
INTERNAL . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
B222C-VEHICLE CONFIGURATION NOT
PROGRAMMED . . . . . . . . . . . . . . . . . . . . . . . 13
*CAN C DIAGNOSTIC (+) AND/OR CAN C
DIAGNOSTIC (-) CIRCUITS HIGH . . . . . . . . . 14
*CAN C DIAGNOSTIC (+) CIRCUIT LOW
*CAN C DIAGNOSTIC (-) CIRCUIT LOW
*CAN C DIAGNOSTIC (+) SHORTED TO
CAN C DIAGNOSTIC (-) . . . . . . . . . . . . . . . . . 20
*CAN C DIAGNOSTIC (-) CIRCUIT OPEN
*CAN C DIAGNOSTIC (+) CIRCUIT OPEN
*BOTH CAN C DIAGNOSTIC (+) AND CAN C
DIAGNOSTIC (-) CIRCUITS OPEN . . . . . . . . . 28
U0021-CAN B BUS (+) CIRCUIT OPEN
U0022-CAN B BUS (+) CIRCUIT LOW
U0023-CAN B BUS (+) CIRCUIT HIGH
U0024-CAN B BUS (-) CIRCUIT OPEN
U0025-CAN B BUS (-) CIRCUIT LOW
U0026-CAN B BUS (-) CIRCUIT HIGH
TO BUS (+) . . . . . . . . . . . . . . . . . . . . . . . . . . 60
ECM/PCM . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
U0101-LOST COMMUNICATION WITH TCM
ELECTRIC GEAR SHIFT MODULE . . . . . . . . . 69
U0114-LOST COMMUNICATION WITH FINAL
DRIVE CONTROL MODULE . . . . . . . . . . . . . . 72
ANTI-LOCK BRAKE MODULE . . . . . . . . . . . . 75
FRONT CONTROL MODULE . . . . . . . . . . . . . 78
OCCUPANT RESTRAINT CONTROLLER
(ORC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
OCCUPANT CLASSIFICATION MODULE . . . . 84
CLUSTER/CCN . . . . . . . . . . . . . . . . . . . . . . . 87
U0156–LOST COMMUNICATION WITH EOM
U0159-LOST COMMUNICATION WITH PARK
ASSIST CONTROL MODULE . . . . . . . . . . . . . 93
U0164-LOST COMMUNICATION WITH HVAC
CONTROL MODULE . . . . . . . . . . . . . . . . . . . 96
INTRUSION TRANSCEIVER CONTROL
MODULE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
VEHICLE SECURITY CONTROL MODULE
(SKREEM/WCM) . . . . . . . . . . . . . . . . . . . . . 102
SUNROOF CONTROL MODULE . . . . . . . . . . 105
RADIO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
AUDIO AMPLIFIER . . . . . . . . . . . . . . . . . . . . 111
SDARS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
WK
ELECTRONIC CONTROL MODULES
8E - 1
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