Tribute 4WD L4-2.3L Hybrid (2008)
Body Control Module: Initial Inspection and Diagnostic Overview
-
SMART JUNCTION BOX (SJB) - HYBRID
Inspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of electrical damage.Visual Inspection Chart
3. 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.
4. If the cause is not visually evident, connect the scan tool to the data link connector (DLC).
NOTE: The vehicle communication module (VCM) prove-out confirms power and ground from the DLC are provided to the VCM.
5. 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.
-
See - See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint Tests/CAN Communication
Network/Pinpoint Test 17: No Power To The Scan Tool, to diagnose no communication with the scan tool.
6. 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.
-
See - See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Pinpoint Tests/CAN Communication
Network/Pinpoint Test 1: The PCM Does Not Respond To The Scan Tool Or No High Speed Controller Area Network (HS-CAN)
Communication to diagnose no response from the PCM.
7. Carry out the network test:
-
If the scan tool responds with no communication for one or more modules, see - See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Symptom Related Diagnostic Procedures/Symptom Troubleshooting Chart.
-
If the network test passes, retrieve and record the continuous memory DTCs.
8. Clear the continuous DTCs and carry out the self-test diagnostics for the SJB.
9. If the DTCs retrieved are related to the concern, see - See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Descriptions/DTC Charts - Smart Junction Box (SJB). For all other DTCs, see -- See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Descriptions/Diagnostic Trouble Code (DTC)
Chart - B, C, P And U Codes.
10. If no DTCs related to the concern are retrieved, verify the symptom and see - See: Symptom Related Diagnostic Procedures.
