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Symptom: *NO RESPONSE FROM CONTROLLER ANTILOCK BRAKE POSSIBLE CAUSES NO RESPONSE FROM CAB GROUND CIRCUIT OPEN OPEN FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN PCI BUS CIRCUIT CONTROLLER ANTILOCK BRAKE TEST ACTION APPLICABILITY 1 Turn the ignition on. All Yes → Go To 2 No → Refer to the Communications category and perform the symptom PCI Bus Communication Failure. 2 Turn the ignition off. All Yes → Go To 3 No → Repair the ground circuit(s) for an open. Perform ABS VERIFICATION TEST - VER 1. 3 Turn the ignition off. All Yes → Go To 4 No → Repair the Fused Ignition Switch Output circuit for an open. Perform ABS VERIFICATION TEST - VER 1. 36 COMMUNICATION |