Item
Detecting Condition
Possible Cause
DTC Strategy
? Circuit continuity check
? Opne or short in power circuit
? Open or short in water heater relay control circuit
? Faulty relay
? Faulty ECM
Enable Conditions
? Ignition on
Threshold Value
? Open or short for water heater relay control circuit.
Diagnostic Time
? 1 sec.
MIL
Fuel Limit
Fuel Cut
EGR Off
? No
Fail safe
? EGR valve deactivited
? Fuel quantity limitation