Inspection and Verification
Inspection and Verification
1. Verify the customer concern.
2. Visually inspect for obvious signs of mechanical or electrical faults.
Mechanical Electrical
^ Battery condition and state of charge
^ Fusible links Battery junction box (BJB) - fusible link 11E Battery junction box (BJB) - fusible link 18E Battery junction box (BJB) - fusible link 7E
^ Fuses Battery junction box (BJB) - fuse 29E Battery junction box (BJB) - fuse 12E Central junction box (CJB) - fuse 48P Central junction box (CJB) - fuse 28P Central junction box (CJB) - fuse 11P
^ Windshield and rear window for ^ Relays Battery junction box (BJB) -
damage or contamination e.g. road wiper relays Battery junction box
film or general residue deposits (BJB) - headlamp power wash relay Battery junction box (BJB) - heated washer jet relay Central junction box (CJB) - washer pump relay Relay trailer - rear wiper relay
^ Wiper blades, arms and linkage for ^ Electrical connections
wear, security, damage and freedom ^ Front and rear wiper motors
of movement ^ Wiper switch
^ Windshield/Rear window/Headlamp ^ Washer pumps
washer fluid level ^ Rain/light sensor
^ Washer pipes and jets for leaks, ^ Heated front washer jets
restrictions and damage ^ Ignition switch
^ Light switch
^ Ambient air temperature sensor
^ Central junction box (CJB)
^ Battery junction box (BJB)
^ ABS module
^ Automatic temperature control module (ATCM)
^ Instrument panel cluster (IPC) module
^ Controller area network (CAN) circuits
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step
4. Use the approved diagnostic system or a scan tool to retrieve any diagnostic trouble codes (DTCs) before moving onto the symptom chart or DTC index.
^ Because the DTCs are stored in more than one module, a complete vehicle read is recommended
^ Make sure that all DTCs are cleared following rectification