Display Field No. 4
Turn ignition on. Display should show a "1". Operate auxiliary water heater. Display should show "0". Check Black/Yellow wire to terminal No. 20 of CCM 28-pin harness connector "A" for open or short to ground.
Turn ignition on. Display should show a "1". Operate auxiliary water heater. Display should show "0". Check Black/Yellow wire to terminal No. 20 of CCM 28-pin harness connector "A" for open or short to ground.