:  Dec 17, 2007



Overview

Data is provided to the instrument cluster from other subsystem modules in the form of controller area network (CAN) messages. The instrument cluster identifies the signals and displays the appropriate message in the message center. Most messages are accompanied by a chime or series of chimes which are requested by the module generating the message. The driver can view system status messages which are current within the instrument cluster software by pressing and holding the trip reset button for more than three seconds, the information display will then display the current messages in priority order. For more information, refer to the relevant workshop manual section.

Car configuration file (CCF)

  : If a new instrument cluster is to be installed, the instrument cluster renewal procedure must be carried out using the approved diagnostic system. This will ensure that the CCF data is correctly transferred from the central junction box (CJB) to the replacement cluster. The CCF will also need to be updated using the approved diagnostic system if the vehicle is modified in service from its original factory specification. This can include the fitting of non-standard wheels and/or tires and optional accessory dealer install components with an electrical interface, such as park distance control.

The CCF contains all relevant data about the specification and market condition of the applicable vehicle, immobilization codes and driver personal settings. This information is retained in the CJB, the engine control module (ECM) and the instrument cluster enabling each system module to detect which systems and components are installed to the vehicle. The information is continuously transferred between these three system modules to ensure that the data is constantly backed-up between the modules.

Inspection and Verification

. Verify the customer concern.

. Confirm which, if any, warning lights and/or messages were displayed on the instrument cluster. For a list of messages, refer to workshop manual section 413-08 - Information and Message Center.

. Visually inspect for obvious electrical faults.

Electrical
  • Battery
  • Fuses Central and battery junction boxes Megafuses
  • Wiring harness
  • Damaged, loose or corroded connectors
  • Controller area network (CAN) circuits
  • Instrument cluster
  • Central junction box (CJB)
  • Engine control module (ECM)

. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.

. Use the approved diagnostic system or a scan tool to retrieve any DTCs before moving onto the DTC index.
  Make sure that all DTCs are cleared following rectification.
Make sure that all DTCs are cleared following rectification.

DTC index

:
  Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system).

DTC Description Possible cause(s) Action
B1A0016 Control Module
  • Battery voltage low
  • Battery ground cable high resistance
  • Battery connections loose/corroded
  • Battery current drain
Check the battery condition and state of charge. Refer to the relevant section of the workshop manual. Check the module power and ground circuits. Refer to the electrical guides.
B1A0017 Control Module
  • Control module circuit voltage above threshold
  • Battery voltage high (overcharging)
  • Control module circuit Short circuit to power
Check the battery condition and state of charge. Refer to the relevant section of the workshop manual. Check the module power and ground circuits. Refer to the electrical guides.
B1A0046 Control module
  • Calibration/Parameter memory failure
Configure the module using the approved diagnostic system. Refer to the warranty policy and procedures manual if a module is suspect.
B1A0048 Control module
  • Supervision software error
Configure the module using the approved diagnostic system. Refer to the warranty policy and procedures manual if a module is suspect.
B1A004B Control module
  • Control module over temperature
Consider the atmospheric conditions before condemning a module. Clear the DTC and retest. Refer to the warranty policy and procedures manual if a module is suspect.
B1A1496 RCM Warning Lamp
  • SRS LED failure
Check the warning lamp function. Check the circuits between the RCM and the instrument cluster. Refer to the electrical guides.
B1A7592 Fuel Sender No.1
  • Fuel level sender circuit short circuit to ground, short circuit to power, high resistance
  • Fuel level sender failure
Refer to the guided diagnostic routine for this code on the approved diagnostic system.
B1A7692 Fuel Sender No.2
  • Fuel level sender circuit short circuit to ground, short circuit to power, high resistance
  • Fuel level sender failure
Refer to the guided diagnostic routine for this code on the approved diagnostic system.
B1A7864 Front Fog Lamp
  • Front fog lamp signal circuit short circuit to ground, short circuit to power, high resistance
  • Front fog lamp switch failure
Refer to the guided diagnostic routine for this code on the approved diagnostic system.
B1A7964 Rear Fog Lamp
  • Rear fog lamp signal circuit short circuit to ground, short circuit to power, high resistance
  • Rear fog lamp switch failure
Refer to the guided diagnostic routine for this code on the approved diagnostic system.
B1A8064 Oil Pressure
  • Oil pressure signal circuit short circuit to ground, short circuit to power, high resistance
  • Oil pressure switch failure
Refer to the guided diagnostic routine for this code on the approved diagnostic system.
B1A8164 Internal Trip Switch
  • Signal plausibility failure
Refer to the guided diagnostic routine for this code on the approved diagnostic system.
B1A8264 External Trip Switch
  • External trip switch, signal circuit short circuit to ground, short circuit to power, high resistance
  • External trip switch failure
Refer to the guided diagnostic routine for this code on the approved diagnostic system.
B1A8446 Car Configuration Data
  • Calibration/parameter memory failure
Configure the module using the approved diagnostic system. Refer to the warranty policy and procedures manual if a module is suspect.
B1A8664 Ignition status
  • Signal plausibility failure
Check the ignition status. Check for ignition related DTCs.
B1A8768 Battery Disconnection / ECU Reset
  • Event information Battery supply interrupt has occurred
Check if the vehicle has been jump-started. Check the battery condition and state of charge. Refer to the relevant section in the workshop manual.
B1A8849 System timer
  • Internal electronic failure The pack has detected a fault with the real time clock
Refer to the warranty policy and procedures manual if a module is suspect.
U000187 High Speed CAN Communication Bus
  • Missing message
Refer to the Network Communications section of the workshop manual.
U000188 High Speed CAN Communication Bus
  • High speed CAN communication Bus (CAN Bus Off)
Refer to the Network Communications section of the workshop manual.
U001087 Medium Speed CAN Communication Bus
  • Missing message
Refer to the Network Communications section of the workshop manual.
U001088 Medium Speed CAN Communication Bus
  • Bus off
Refer to the Network Communications section of the workshop manual.
U010087 Lost Communication With ECM/PCM "A"
  • CAN Link instrument cluster/Engine control module missing message
Refer to the Network Communications section of the workshop manual.
U010187 Lost Communication with TCM
  • CAN Link instrument cluster/Transmission control module missing message
Refer to the Network Communications section of the workshop manual.
U010287 Lost Communication with Transfer Case Control Module
  • CAN Link instrument cluster/transfer box control module missing message
Refer to the Network Communications section of the workshop manual.
U010487 Lost Communication With Cruise Control Module
  • CAN Link instrument cluster/speed control module missing message
Refer to the Network Communications section of the workshop manual.
U012287 Lost Communication With Vehicle Dynamics Control Module
  • CAN Link instrument cluster/ABS module missing message
Refer to the Network Communications section of the workshop manual.
U012687 Lost Communication With Steering Angle Sensor Module
  • CAN Link instrument cluster/SAS missing message
Refer to the Network Communications section of the workshop manual.
U012787 Lost Communication With Tire Pressure Monitor Module
  • CAN Link instrument cluster/TPMS module missing message
Refer to the Network Communications section of the workshop manual.
U012887 Lost Communication With Park Brake Control Module
  • CAN Link instrument cluster/parking brake control module missing message
Refer to the Network Communications section of the workshop manual.
U013287 Lost Communication With Suspension Control Module "A"
  • CAN Link instrument cluster/air suspension control module missing message
Refer to the Network Communications section of the workshop manual.
U013387 Lost Communication With Active Roll Control Module
  • CAN Link instrument cluster/active stabilization system missing message
Refer to the Network Communications section of the workshop manual.
U013687 Lost Communication With Differential Control Module - Rear
  • CAN Link instrument cluster/electronic rear differential control module missing message
Refer to the Network Communications section of the workshop manual.
U013887 Lost Communication with All Terrain Control Module
  • CAN Link instrument cluster/terrain response control module missing message
Refer to the Network Communications section of the workshop manual.
U014087 Lost Communication With Body Control Module
  • Missing message
Refer to the Network Communications section of the workshop manual.
U015187 Lost Communication With Restraints Control Module
  • CAN Link instrument cluster/RCM missing message
Refer to the Network Communications section of the workshop manual.
U015987 Lost Communication With Parking Assist Control Module "A"
  • CAN Link instrument cluster/parking aid module missing message
Refer to the Network Communications section of the workshop manual.
U016487 Lost Communication With HVAC Control Module
  • CAN Link instrument cluster/ATC module missing message
Refer to the Network Communications section of the workshop manual.
U016687 Lost Communication With Auxiliary Heater Control Module
  • CAN Link instrument cluster/auxiliary heater control module missing message
Refer to the Network Communications section of the workshop manual.
U018287 Lost Communication With Lighting Control Module - Front
  • CAN Link instrument cluster/AFS control module missing message
Refer to the Network Communications section of the workshop manual.
U018487 Lost Communication With Radio
  • CAN Link instrument cluster/ACM missing message
Refer to the Network Communications section of the workshop manual.