Normal Operation
WARNING: This page is about a different car, the 2012 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
The operating voltage required for ABS module isolation valve operation is between 10 and 17 volts.
Fused battery voltage is supplied to the ABS module for the valves by the Battery Junction Box (BJB).
- DTC C1266 (ABS Valve Power Relay Circuit Failure) - this DTC sets in the ignition cycle if the ABS module detects an open or a short to ground on the valve power feed circuit. DTCs set in the ignition cycle can only be cleared by cycling the ignition off and on once the fault has been corrected.
This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- ABS module