Checking Component And Wiring
Check signal cable between engine control module (ECM) #A68 (#B8) and air conditioning (A/C) sensor #2 for an intermittent short-circuit to supply voltage according to SHORT-CIRCUIT TO SUPPLY VOLTAGE, INTERMITTENT FAULTS
Check power supply cable between engine control module (ECM) #A39 (#A39) and air conditioning (A/C) pressure sensor #3 for an intermittent open-circuit according to OPEN-CIRCUIT, INTERMITTENT FAULTS
Check power supply cable between engine control module (ECM) #A60 (#A60) and air conditioning (A/C) pressure sensor #1 for an intermittent open-circuit according to OPEN-CIRCUIT, INTERMITTENT FAULTS
Remedy as necessary
Other information
- Connecting the breakout box/accessing the control module, see CONNECTING THE BREAKOUT BOX .
- Air conditioning (A/C) pressure sensor #2 is the signal cable, #3 is the power supply (5V) and #1 is the signal ground.
- For 5 cylinder turbocharged engines -2004, see SIGNAL DESCRIPTION
- For 6 cylinder engines -2004, see SIGNAL SPECIFICATION
- Continue
Refer to INFORMATION