Section 54 (Body Control Computer)
WARNING: This page is about a different car, the 1996 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
- Identification
- Description & Operation
- Testing
- Body Control Computer Tests
- Symptom Id Test 1A - Identifying Vehicle Equipment & System Problems
- Symptom Id Test 1B - Identifying Fault Messages
- Chime Test 1A - Identifying Chime Problems
- Chime Test 2A - Chime Inoperative At All Times
- Chime Test 3A - Chime Sounds With Driver's Seat Belt Fastened
- Chime Test 4A - Chime Sounds With Driver's Door Open
- Chime Test 4B - Repairing Shorted Key-In Ignition Switch
- Chime Test 5A - Chime Inoperative With Exterior Lights On
- Chime Test 6A - Chime Inoperative With Key-In Ignition & Driver's Door Open
- Chime Test 7A - Chime Inoperative With Seat Belt Unfastened
- Compass/Mini-Trip Test 1A - Identifying Compass/Mini-Trip Problems
- Compass/Mini-Trip Test 2A - CMTC Displays SC
- Compass/Mini-Trip Test 3A - CMTC Displays OC
- Compass/Mini-Trip Test 4A - Incorrect Ambient Temperature Reading
- Compass/Mini-Trip Test 5A - CMTC Elapsed Time Inoperative Or Wrong
- Compass/Mini-Trip Test 6A - CMTC Button Problems
- Door Ajar Test 1A - Identifying Door Ajar System Problems
- Door Ajar Test 2A - Shorted Left Front Door Ajar Circuit
- Door Ajar Test 3A - Open Left Front Door Ajar Circuit
- Door Ajar Test 4A - Shorted Right Front Door Ajar Circuit
- Door Ajar Test 5A - Open Right Front Door Ajar Circuit
- Door Ajar Test 6A - Shorted Right Rear Door Ajar Circuit
- Door Ajar Test 7A - Open Right Rear Door Ajar Circuit
- Door Ajar Test 8A - Shorted Liftgate Ajar Circuit
- Door Ajar Test 9A - Open Liftgate Ajar Circuit
- Door Ajar Test 10A - Shorted Left Rear Door Ajar Circuit
- Door Ajar Test 11A - Open Left Rear Door Ajar Circuit
- Exterior Lights Test 1A - Identifying Exterior Lighting System Problems
- Exterior Lights Test 2A - Auto Headlights Inoperative
- Exterior Lights Test 3A - Auto Headlights Stay On When Engine Is Running & Switch Is In Auto
- Exterior Lights Test 4A - Auto Headlights Stay On When Engine Is Running & Switch Is Off
- Exterior Lights Test 5A - Headlight Delay Inoperative
- Exterior Lights Test 6A - Headlights Will Not Turn Off
- Exterior Lights Test 7A - FOGLIGHTS Inoperative
- Instrument Cluster Test 1A - Identifying Instrument Cluster System Problems
- Instrument Cluster Test 2A - All Gauges Not Operating Properly
- Instrument Cluster Test 3A - Fuel Gauge Not Operating Properly
- Instrument Cluster Test 4A - Speedometer Not Operating Properly
- Instrument Cluster Test 5A - Tachometer Not Operating Properly
- Instrument Cluster Test 6A - Temperature Gauge Not Operating Properly
- Instrument Cluster Test 7A - Oil Pressure Gauge Not Operating Properly
- Instrument Cluster Test 8A - Voltmeter Not Operating Properly
- Instrument Cluster Test 9A - All Warning Lights Not Operating Properly
- Instrument Cluster Test 10A - One Warning Light Not Operating Properly
- Instrument Cluster Test 11A - PWM (Pulse Width Dimming) Test Failed
- Interior Lights Test 1A - Identifying Interior Lighting System Problems
- Interior Lights Test 2A - Courtesy Lights Inoperative From Any Switch
- Interior Lights Test 3A - Courtesy Lights Inoperative From Headlight Switch
- Interior Lights Test 4A - Courtesy Lights Inoperative From Liftgate
- Interior Lights Test 5A - Courtesy Lights Stay On
- Interior Lights Test 6A - Front Door Courtesy Lights Inoperative
- Interior Lights Test 7A - Liftgate (Cargo) Courtesy Light Inoperative
- Memory Seat Test 1A - Identifying Memory Seat System Problems
- Memory Seat Test 2A - Memory Switch Circuit Open
- Memory Seat Test 3A - Seat Belt Status Not Received
- Memory Seat Test 4A - Repairing Memory Seat Circuits (1 Of 2)
- Memory Seat Test 4B - Repairing Memory Seat Circuits (2 Of 2)
- Power Door Lock Test 1A - Identifying Power Door Lock System Problems
- Power Door Lock Test 2A - One Door Fails To Lock & Unlock
- Power Door Lock Test 2B - Left Front Door Fails To Lock & Unlock
- Power Door Lock Test 3A - Left Front Door Fails To Lock
- Power Door Lock Test 4A - Left Front Door Fails To Unlock
- Power Door Lock Test 5A - All Doors (Except Left Front Door) Fail To Lock & Unlock
- Power Door Lock Test 6A - All Doors (Except Left Front Door) Fail To Lock
- Power Door Lock Test 7A - All Doors (Except Left Front Door) Fail To Unlock
- Power Door Lock Test 8A - Repairing Door Lock Inhibit
- Power Door Lock Test 9A - Repairing Remote Keyless Entry
- Power Door Lock Test 10A - Repairing Power Door Locks
- Power Mirror Test 1A - Identifying Power Mirror System Problems
- Power Mirror Test 2A - Driver's &/Or Passenger's Mirrors Inoperative
- Power Mirror Test 3A - Passenger's Mirror Inoperative
- Power Mirror Test 4A - Mirrors Inoperative From Left To Right
- Power Mirror Test 5A - Mirror Memory Inoperative
- Power Mirror Test 5C - Repairing Open Memory Mirror Circuit
- Power Mirror Test 6A - Heated Mirror Inoperative
- Power Window Test 1A - Identifying Power Window System Problems
- Power Window Test 2A - Inoperative Left Front Window Motor
- Power Window Test 3A - Inoperative Right Front Window Motor
- Power Window Test 4A - Inoperative Left Rear Window Motor
- Power Window Test 5A - Inoperative Right Rear Window Motor
- Power Window Test 6A - Inoperative Window Switch Illumination
- Anti-Theft System Test 1A - Identifying Anti-Theft System Problems
- Anti-Theft System Test 1B - Disarming Anti-Theft System
- Anti-Theft System Test 2A - Anti-Theft System Indicator Light Comes On While Driving
- Anti-Theft System Test 3A - Enabling Anti-Theft System
- Anti-Theft System Test 4A - Repairing Anti-Theft System Horn Circuit
- Anti-Theft System Test 5A - Repairing Anti-Theft System Indicator Light
- Anti-Theft System Test 6A - Repairing Headlight & Park Light Relay Circuits
- Anti-Theft System Test 6B - Repairing Park Light Relay Circuit
- Anti-Theft System Test 7A - Repairing Defective Anti-Theft System Disarm Circuit
- Anti-Theft System Test 8A - Repairing Hood Ajar Circuit
- Windshield Wiper Test 1A - Identifying Windshield Wiper System Problems
- Windshield Wiper Test 2A - Repairing Open Intermittent Wiper Relay Circuit
- Windshield Wiper Test 3A - Repairing Shorted Intermittent Wiper Relay Circuit
- Windshield Wiper Test 4A - Repairing Wiper Park Switch
- Windshield Wiper Test 5A - Intermittent Wipers Inoperative
- Windshield Wiper Test 6A - Wiper Speed Sensitive Feature Inoperative
- Windshield Wiper Test 7A - Wiper Does Not Work After Wash Button Is Pressed
- Test VER-1A - Verification Procedure
- Test VER-2A - Verification Procedure
- Test VER-3A - Verification Procedure
- Vehicle Communications Tests
- Test 1A - Bus Fault Messages
- Test 2A - No Response From Air Bag Control Module
- Test 2B - No Response From Air Bag Control Module
- Test 3A - No Response From Body Control Module
- Test 4A - Compass/Mini Trip Computer Displaying "No Response"
- Test 5A - No Response From Driver Door Module
- Test 6A - No Response From Instrument Cluster
- Test 6B - No Response From Instrument Cluster
- Test 7A - No Response From Memory Seat Module
- Test 8A - No Response From Passenger Door Module
- Test 9A - No Response From Powertrain Control Module
- Test 10A - No Response From Radio
- Test 10B - No Response From Radio
- Test 11A - No Response From Vehicle Information Center (VIC)
- Test 12A - Bus Short To Battery
- Test 12B - Bus Short To Battery
- Test 12C - Bus Short To Battery
- Test 12D - Bus Short To Battery
- Test 12E - Bus Short To Battery
- Test 12F - Bus Short To Battery
- Test 13A - Bus Short To 5 Volts
- Test 13B - Bus Short To 5 Volts
- Test 13C - Bus Short To 5 Volts
- Test 13D - Bus Short To 5 Volts
- Test 13E - Bus Short To 5 Volts
- Test 14A - Bus Short To Ground
- Test 15A - Bus (+) & Bus (-) Shorted Together
- Test 16A - No Termination
- Test 17A - Bus Bias Level Too Low Or Too High, Not Receiving Messages Correctly
- Test 18A - Bus Open
- Verification Test Ver-1A - Verification Procedure
- Self-Diagnostics
- Wiring Diagram