Tribute 4WD L4-2.5L Hybrid (2009)
Brake Lamp: Initial Inspection and Diagnostic Overview
STOPLAMPS
Inspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical or 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 the headlight switch is in the OFF position.
NOTE:Make sure the multifunction switch is in the LOW BEAM position.
4. If the cause is not visually evident, connect the scan tool to the data link connector (DLC).
NOTE:Make sure to use the latest scan tool software release.
5. If the scan tool does not communicate with the VCM:
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Check the VCM connection to the vehicle.
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Check the scan tool connection to the VCM.
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See , to diagnose no power to the scan tool.
NOTE:The vehicle communication module (VCM) LED prove-out confirms power and ground from the DLC are provided to the VCM.
6. If the scan tool does not communicate with the vehicle:
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Verify the ignition key is in the ON position.
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Verify the scan tool operation with a known good vehicle.
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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, to diagnose no response from the PCM.
7. Carry out the network test.
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If the scan tool responds with no communication for one or more modules, see See: Powertrain Management/Computers and Control
Systems/Description and Operation/Communications Network.
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/Lighting Systems - Diagnostic Trouble Code (DTC) Chart. For all other DTCs, - See:
Powertrain Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Descriptions/Control Systems - B, C
And U Codes - DTC Chart.
10. If no DTCs related to the concern are retrieved, go to - See: Symptom Related Diagnostic Procedures.
