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B1D51-ADJUSTABLE PEDAL INHIBIT CIRCUIT OPEN (CONTINUED) 3. SWAP OUT THE ADJUSTABLE PEDALS RELAY Turn the ignition off. Install a substitute relay in place of the Adjustable Pedals Relay. Turn the ignition on. With the scan tool, erase DTC’s. Cycle the ignition switch from off to on. With the scan tool, read and record DTC’s Does the scan tool display: B1D4F-ADJUSTABLE PEDAL INHIBIT CIRCUIT LOW? Yes >> Go To 4 No >> Replace the Adjustable Pedals Relay in accordance with the Service Information. Perform APS VERIFICATION TEST - VER 1. 4. CHECK THE VOLTAGE ON THE FUSED B(+) CIRCUIT FOR THE ADJUSTABLE PEDALS RELAY Turn the ignition off. Remove the Adjustable Pedals Relay from the IPM. Measure the voltage of the internal Fused B(+) circuit at the IPM. Is the voltage above 10 volts? Yes >> Go To 5 No >> Replace the IPM in accordance with the Service Information. Perform APS VERIFICATION TEST - VER 1. 5. CHECK THE ADJUSTABLE PEDALS RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Front Control Module harness connector. Remove the Adjustable Pedals Relay from the IPM. Using a 12-volt test light connected to 12-volts, check the Adjustable Pedals Relay Control circuit. Does the test light illuminate brightly? Yes >> Repair the Adjustable Pedals Relay Control circuit for a short to ground. Perform APS VERIFICATION TEST - VER 1. No >> Go To 6 6. CHECK THE ADJUSTABLE PEDALS RELAY CONTROL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the Front Control Module harness connector. Remove the Adjustable Pedals Relay from the IPM. Turn the ignition on. Using a 12-volt test light connected to ground, check the Adjustable Pedals Relay Control circuit. Does the test light illuminate brightly? Yes >> Repair the Adjustable Pedals Relay Control circuit for a short to voltage. Perform APS VERIFICATION TEST - VER 1. No >> Go To 7 5 - 418 BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS WK |