Main Relay/Power Circuit Failure

When monitored: Continuously.

Set condition: The CAB controls the activation of the main relay. If the CAB turns on the main relay and 12 volts is missing from all three pins 13,25, & 37, or an overvoltage (>16 volts) condition exists, this code is set.

Possible causes:

> Fuse "H" open
> ABS main relay
> Bad relay grounding
> 10-way connector disconnected
> Overvoltage (>16 volts)
> ABS main relay control circuit open
> ABS main relay output circuit open
> ABS main relay fused B(+) circuit open
> ABS main relay output circuit shorted to ground
> 14-way connection between valve block and CAB