Normal Operation

The operating voltage required for ABS module isolation valve operation is in a range between 10 and 17 volts.

Fused battery voltage is supplied to the ABS module for the valves by Battery Junction Box (BJB) fuse 33 (30A) along circuit SBB15 (WH/RD) and ground is provided along circuit GD122 (BK).

• DTC C1266 (ABS Valve Power Relay Circuit Failure) - If the ABS module detects an open or a short to ground on the valve power feed circuit, DTC C1266 will be set.

This pinpoint test is intended to diagnose the following: 

• Fuse
• Wiring, terminals or connectors
• ABS module