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*NO RESPONSE FROM CLUSTER (CONTINUED) For a complete wiring diagram Refer to Section 8W. Possible Causes (Z921) (Z108) (Z18) GROUND CIRCUIT OPEN (A944) (M288) (A941) (A114) FUSED B+ CIRCUIT OPEN (F21) (F1) (F983) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN (D25) PCI BUS CIRCUIT OPEN CLUSTER Diagnostic Test 1. ESTABLISH COMMUNICATIONS WITH OTHER PCI BUS MODULES Turn the ignition on. NOTE: Ensure there is PCI bus communication with other modules. If not, refer to the PCI Bus Communi- With the DRB, attempt to communicate with the ABS. Was the DRB able to I/D or communicate with either module? Yes >> Go To 2 No >> Refer to the table of contents and perform the related symptom. Perform BODY VERIFICATION TEST - VER 1. (Refer to BODY VERIFICATION TEST - VER 1.) 2. (Z921) (Z108) (Z18) GROUND CIRCUIT OPEN Turn the ignition off. Disconnect the Cluster harness connectors. Using a 12-volt test light connected to 12-volts, probe each (Z921) Is the test light illuminated for each circuit? Yes >> Go To 3 No >> Repair the (Z921) (Z108) (Z18) Ground circuit for an open. Perform BODY VERIFICATION TEST - VER 1. (Refer to 8E - 28 ELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS DR/DH |