Normal Operation

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

Fused battery voltage is supplied to the ABS module by Battery Junction Box (BJB) fuse 9 (40A) along circuit SBB09 (RD) and by BJB fuse 12 (20A) along circuit SBB12 (GN/RD). Fused ignition voltage is supplied to the ABS module by Smart Junction Box (SJB) fuse 34 (5A) along circuit CBP34 (VT/BN). Ground is provided along circuit GD120 (BK/GN).

• DTC B1676 (Battery Pack Voltage Out of Range) - With the ignition key in the RUN position and wheel speed greater than 6 km/h (3.7 mph), if the voltage to the ABS module rises above 16.9 volts or falls below 9.4 volts, DTC B1676 will set.

This pinpoint test is intended to diagnose the following: 

• Fuse(s)
• Wiring, terminals or connectors
• Charging system
• ABS module