Inspection and Verification

Verify the customer concern.

Visually inspect for obvious signs of mechanical or electrical damage.

VISUAL INSPECTION CHART

Mechanical	Electrical
Engine oil level Door adjustment Liftgate adjustment Engine coolant level Fuel tank Fuel evaporative system Brake fluid level Accessory drive belt Tire pressure Washer fluid level	Smart junction box (SJB) fuse(s): 8 (15A) 24 (10A) Circuitry Connectors Bulbs Instrument cluster

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

NOTE: Make sure to use the latest scan tool software release.

If the cause is not visually evident, connect the scan tool to the data link connector (DLC).

NOTE: The vehicle communication module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM.

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.
Clear the continuous DTCs and carry out the self-test diagnostics for the instrument cluster, SJB and PCM.
If the DTCs retrieved are related to the concern, go to the Instrument Cluster Diagnostic Trouble Code (DTC) Chart, the Smart Junction Box (SJB) Diagnostic Trouble Code (DTC) Chart, or the Powertrain Control Module (PCM) Diagnostic Trouble Code (DTC) Chart. For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES .
If no DTCs related to the concern are retrieved, go to Symptom Chart .

INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE (DTC) CHART

DTC	Description	Action
B1203	Fuel Sender Circuit Short to Battery	Go to Pinpoint Test B .
B1204	Fuel Sender Circuit Short to Ground	Go to Pinpoint Test B .
B1213	Anti-Theft Number of Programmed Keys Is Below Minimum	REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) .
B1255	Air Temperature External Sensor Circuit Open	REFER to INFORMATION AND MESSAGE CENTER .
B1257	Air Temperature External Sensor Circuit Short to Ground	REFER to INFORMATION AND MESSAGE CENTER .
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	CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is still present, REFLASH the instrument cluster. If the DTC is still present after a software reflash, INSTALL a new instrument cluster. REFER to Instrument Cluster (IC) . TEST the system for normal operation.
B1600	PATS Ignition Key Transponder Signal Is Not Received	REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) .
B1601	PATS Received Incorrect Key-Code From Ignition Key Transponder	REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) .
B1602	PATS Received Invalid Format Of Key-Code From Ignition Key Transponder	REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) .
B1605	Lamp Anti-Theft Indicator Circuit Short To Battery	REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) .
B1606	Lamp Anti-Theft Indicator Circuit Short To Ground	REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) .
B1681	PATS Transceiver Module Signal Is Not Received	REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) .
B1868	Lamp Air Bag Warning Indicator Circuit Failure	REFER to WARNING DEVICES .
B1915	Air Bag Driver Circuit Failure	CLEAR the DTCs. REPEAT the self-test. If DTC B1915 is still present, INSTALL a new instrument cluster. REFER to Instrument Cluster (IC) . TEST the system for normal operation.
B2097	Compass Module Failure	REFER to INFORMATION AND MESSAGE CENTER .
B2103	Antenna Not Connected	REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) .
B2141	NVM Configuration Failure	REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) .
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 (IC) . TEST the system for normal operation.
B2431	Transponder Programming Failed	REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) .
B2477	Module Configuration Failure	CONFIGURE the instrument cluster. CLEAR the DTCs. REPEAT the self-test. If DTC B2477 is still present, INSTALL a new instrument cluster. REFER to Instrument Cluster (IC) .
U0140	Lost Communication With Body Control Module (GEM)	CLEAR the DTCs. REPEAT the self-test. If DTC B1317 or B1318 is present, REFER to CHARGING SYSTEM - GENERAL INFORMATION . to diagnose the charging system. If DTC U0140 is still present, REFER to MODULE COMMUNICATIONS NETWORK . to diagnose no communication with the SJB.
U0159	Lost Communication With Parking Assist Control Module (PAM)	CLEAR the DTCs. REPEAT the self-test. If DTC B1317 or B1318 is present, REFER to CHARGING SYSTEM - GENERAL INFORMATION . to diagnose the charging system. If DTC U0159 is still present, REFER to MODULE COMMUNICATIONS NETWORK . to diagnose no communication with the parking aid module.
U0208	Lost Communication With Seat Control Module (DSM)	CLEAR the DTCs. REPEAT the self-test. If DTC B1317 or B1318 is present, REFER to CHARGING SYSTEM - GENERAL INFORMATION . to diagnose the charging system. If DTC U0208 is still present, REFER to MODULE COMMUNICATIONS NETWORK . to diagnose no communication with the driver seat module.
U0244	Lost Communication With Running Board Control Module (PRB)	CLEAR the DTCs. REPEAT the self-test. If DTC B1317 or B1318 is present, REFER to CHARGING SYSTEM - GENERAL INFORMATION . to diagnose the charging system. If DTC U0244 is still present, REFER to MODULE COMMUNICATIONS NETWORK . to diagnose no communication with the power running board module.
U1900	CAN Communication Bus Fault - Receive	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 .
U2013	Compass Module is Not Responding	REFER to INFORMATION AND MESSAGE CENTER .
U2050	No Application Present	REFLASH the instrument cluster. If the DTC occurs after a software reflash, REFLASH the instrument cluster again. If the DTC is present after each attempt to reflash, INSTALL a new instrument cluster. REFER to Instrument Cluster (IC) . TEST the system for normal operation.
U2051	One or More Calibration Files Missing / Corrupt	REFLASH the instrument cluster. If the DTC occurs after a software reflash, REFLASH the instrument cluster again. If the DTC is present after each attempt to reflash, INSTALL a new instrument cluster. REFER to Instrument Cluster (IC) . TEST the system for normal operation.
U2510	CAN - Invalid data for Vehicle Security	REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) .
U2511	CAN - Data Mis-Match (Receive data does not match expected)	REFER to ANTI-THEFT - PASSIVE ANTI-THEFT SYSTEM (PATS) .

SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) CHART

DTC	Description	Action
C1769	Park Brake Apply Switch Circuit Short to Ground	Go to Pinpoint Test I .
All other DTCs	-	REFER to MULTIFUNCTION ELECTRONIC MODULES .

POWERTRAIN CONTROL MODULE (PCM) DIAGNOSTIC TROUBLE CODE (DTC) CHART

DTC	Description	Source	Action
P0457	Evaporative Emission System Leak Detected (fuel cap loose/off)	PCM	Go to Pinpoint Test G .
P0460	Fuel Level Sensor A Circuit	PCM	REFER to the Introduction - Gasoline Engines . first. If sent here from the PC/ED manual, go to Pinpoint Test B .
P0461	Fuel Level Sensor A Circuit Range/Performance	PCM	REFER to the Introduction - Gasoline Engines . first. If sent here from the PC/ED manual, go to Pinpoint Test B .
P0462	Fuel Level Sensor A Circuit Low	PCM	REFER to the Introduction - Gasoline Engines . first. If sent here from the PC/ED manual, go to Pinpoint Test B .
P0463	Fuel Level Sensor A Circuit High	PCM	REFER to the Introduction - Gasoline Engines . first. If sent here from the PC/ED manual, go to Pinpoint Test B .
All other DTCs	-	PCM	REFER to the Introduction - Gasoline Engines .