Normal Operation

The voltage required for correct ABS operation is between 10 and 18 volts. Fused battery voltage is supplied to the ABS module from Battery Junction Box (BJB) fuse 12 (30A) along circuit 30-CF13 (RD), BJB fuse 15 (20A) along circuit 30-CF6 (RD). Fused ignition voltage is supplied to the ABS module from Central Junction Box (CJB) fuse 161 (7.5A) along circuit 15-CF6 (GN/YE). Ground is provided along circuit 91-CF6 (BK/YE) and circuit 91-CF13 (BK/BU).

• DTC U3003:16 (Battery Voltage: Circuit Voltage Below Threshold) - If the voltage on circuit 30-CF13 (RD), 30-CF6 (RD) or 15-CF6 (GN/YE) is below 10 volts, this DTC will set.
• DTC U3003:17 (Battery Voltage: Circuit Voltage Above Threshold) - If the voltage on circuit 30-CF13 (RD), 30-CF6 (RD) or 15-CF6 (GN/YE) is above 17 volts, this DTC will set.
• DTC U3003:62 (Battery Voltage: Signal Compare Failure) - The ABS module compares measured input voltage with the battery voltage that is broadcast on the High Speed Controller Area Network (HS-CAN). If the measured voltage at the ABS module does not match the battery voltage reported by other modules on the bus, this DTC will set.

This pinpoint test is intended to diagnose the following: 

• Charging system
• Fuses
• Battery
• Wiring, terminals or connectors
• ABS module