Normal Operation

The operating voltage required for ABS module isolation valve operation is in a range between 10 and 16 volts.

Fused battery voltage is supplied to the ABS module for the valves by Battery Junction Box (BJB) fuse 12 (20A) along circuit SBB12 (GN/RD) and ground is provided along circuit GD120 (BK/GN).

• 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 sets.

This pinpoint test is intended to diagnose the following: 

• Fuse
• Wiring, terminals or connectors
• ABS module