Inspection and Verification
- Verify the customer concern.
- Visually inspect the following for obvious signs of mechanical or electrical damage.VISUAL INSPECTION CHART
Mechanical Electrical - Engine oil level
- Door adjustment
- Trunk adjustment
- Engine coolant level
- Fuel tank
- Fuel evaporative system
- Brake fluid level
- Accessory drive belt
- Smart junction box (SJB) fuse(s):
- 13 (7.5A)
- 23 (7.5A)
- 27 (7.5A)
- Circuitry
- Instrument cluster
- If the cause is not visually evident, correct the cause (if possible) before proceeding to the next step.
- If the cause is not visually evident, connect the scan tool to the data link connector (DLC).
- If the scan tool does not communicate with the VCM:
- Check the VCM connection to the vehicle.
- Check the scan tool connection to the VCM.
- Refer to MODULE COMMUNICATIONS NETWORK , No Power To The Scan Tool, to diagnose no communication with the scan tool.
- If the scan tool does not communicate with the vehicle:
- Verify the ignition key is in the ON position.
- Verify the scan tool operation with a known good vehicle.
- Refer to MODULE COMMUNICATIONS NETWORK to diagnose no response from the powertrain control module (PCM).
- Carry out the network test:
- If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK .
- If the network test passes, retrieve and record the continuous memory DTCs for the instrument cluster, the restraints control module (RCM), the smart junction box (SJB), and the PCM.
- Clear the continuous DTCs and carry out the self-test diagnostics for the instrument cluster.
- If the DTCs retrieved are related to the concern, go to the Instrument Cluster Diagnostic Trouble Code (DTC) Index, the Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Index, or the Powertrain Control Module (PCM) Diagnostic Trouble Code (DTC) Index. For all other module DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES .
- If no DTCs related to the concern are retrieved, go to Symptom Chart .
NOTE:
Make sure to use the latest scan tool software release.
NOTE:
The vehicle communication module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM.
INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTC | Description | Action |
|---|---|---|
| B1202 | Fuel Sender Circuit Open (fuel pump module) | If equipped with front wheel drive (FWD), go to Pinpoint Test A . If equipped with all wheel drive (AWD), go to Pinpoint Test B . |
| B1204 | Fuel Sender Circuit Short to Ground (fuel pump module) | If equipped with front wheel drive (FWD), go to Pinpoint Test A . If equipped with all wheel drive (AWD), go to Pinpoint Test B . |
| B1205 | EIC Switch-1 Assembly Circuit Failure | Trip/Reset switch failure occurred. VERIFY the trip/reset switch is not binding on the instrument cluster bezel. If the trip/reset switch is binding on the instrument cluster bezel, REPAIR the bezel assembly as necessary. CLEAR the DTCs. REPEAT the self-test. If the trip/reset switch is not binding on the instrument cluster bezel, CLEAR the DTCs. REPEAT the self-test. If DTC B1205 is still present, INSTALL a new instrument cluster. REFER to Instrument Cluster . TEST the system for normal operation. |
| B1317 | Battery Voltage High | CLEAR the DTCs. REPEAT the self-test. If DTC B1317 is still present, REFER to CHARGING SYSTEM - GENERAL INFORMATION . |
| B1318 | Battery Voltage Low | CLEAR the DTCs. REPEAT the self-test. If DTC B1318 is still present, REFER to CHARGING SYSTEM - GENERAL INFORMATION . |
| B1342 | ECU is Faulted | INSTALL a new instrument cluster. REFER to Instrument Cluster . TEST the system for normal operation. |
| B1360 | Ignition Run/Acc Circuit Open | Go to Pinpoint Test X . |
| B1868 | Lamp Air Bag Warning Indicator Circuit Failure | Go to Pinpoint Test Q . |
| B2141 | NVM Configuration Failure | RECONFIGURE the instrument cluster. REFER to MODULE CONFIGURATION . REPEAT the self-test. CLEAR the DTCs. |
| B2143 | NVM Memory Failure | CLEAR the DTCs. REPEAT the self-test. If DTC B2143 is still present, INSTALL a new instrument cluster. REFER to Instrument Cluster . TEST the system for normal operation. |
| B2207 | ECU ROM Checksum Error | CLEAR the DTCs. REPEAT the self-test. If DTC B2207 is still present, INSTALL a new instrument cluster. REFER to Instrument Cluster . TEST the system for normal operation. |
| B2390 | Master/Slave Communication Failure | CLEAR the DTCs. REPEAT the self-test. If DTC B2390 is still present, INSTALL a new instrument cluster. REFER to Instrument Cluster . TEST the system for normal operation. |
| B2477 | Module Configuration Failure | REFER to MODULE CONFIGURATION . |
| B2627 | Fuel Sender Circuit Open #2 (secondary fuel sender) | Go to Pinpoint Test B . |
| B2628 | Fuel Sender Circuit Short to Ground #2 (secondary fuel sender) | Go to Pinpoint Test B . |
| B2844 | Ignition Fault | Go to Pinpoint Test Y . |
| B2879 | Fuel Tank Jet Pump Fault | Go to Pinpoint Test B . |
| C2784 | RAM Checksum Failure | REPAIR all other DTCs first. CLEAR the DTCs. REPEAT the self-test. If DTC C2784 is still present, INSTALL a new instrument cluster. REFER to Instrument Cluster . TEST the system for normal operation. |
| U1900 | CAN Communication Bus Fault | REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1900 is still present, REFER to MODULE COMMUNICATIONS NETWORK . |
| U1901 | CAN Network #2 Communication Bus Fault-Receive Error | REPAIR all other DTCs first. CLEAR the DTCs. CYCLE the key OFF then ON and wait 10 seconds. REPEAT the self-test. If DTC U1901 is still present, REFER to MODULE COMMUNICATIONS NETWORK . |
| U2050 | No Application Present | REFER to MODULE CONFIGURATION . TEST the system for normal operation. |
| U2051 | One or More Calibration Files Missing/Corrupt | REFER to MODULE CONFIGURATION . TEST the system for normal operation. |
| All other DTCs | - | REFER to MULTIFUNCTION ELECTRONIC MODULES . |
SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTC | Description | Action |
|---|---|---|
| B2479 | Brake Park Switch Circuit Short to Ground | Go to Pinpoint Test J . |
| C1125 | Brake Fluid Level Sensor Input Circuit Failure | Go to Pinpoint Test J . |
| C1284 | Oil Pressure Switch Failure | Go to Pinpoint Test O . |
| All other DTCs | - | REFER to MULTIFUNCTION ELECTRONIC MODULES . |
POWERTRAIN CONTROL MODULE (PCM) DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTC | Description | Action |
|---|---|---|
| P0457 | Fuel Fill Cap Off | Go to Pinpoint Test H . |
| All other DTCs | - | REFER to the Introduction - Gasoline Engines . |