Checking Components And Wiring
Check the cable between combustion preheater module (CPM) terminal #13 and fuel pump (FP) terminal 2. Check for a short-circuit to supply voltage.
With the ignition on and the fuel pump (FP) connector disconnected, the voltage between fuel pump (FP) terminal 2 (control module side) and ground must be 0 V.
The fuel pump (FP) must be replaced if no faults are found in the cable.
Remedy as necessary.
Other information
- see CONNECTING THE BREAKOUT BOX
- see SIGNAL SPECIFICATION
- see FUEL PUMP AUXILIARY HEATER, REPLACING
- see CHECKING WIRING AND TERMINALS
- Continue
Refer to VERIFICATION
Check the cable between combustion preheater module (CPM) terminal #13 and fuel pump (FP) terminal 2. Check for a short-circuit to supply voltage.
Remedy as necessary.
Other information
- see CONNECTING THE BREAKOUT BOX
- see FUEL PUMP AUXILIARY HEATER, REPLACING
- see SIGNAL SPECIFICATION
- see CHECKING WIRING AND TERMINALS
- Continue
Refer to VERIFICATION