Checking Component And Wiring
Check air conditioning (A/C) pressure sensor connector for intermittent contact resistance and oxidation according to CONTACT RESISTANCE AND OXIDATION
Check cable between engine control module (ECM) #A68 (#B8) and air conditioning (A/C) sensor #2 for an intermittent short-circuit to ground according to SHORT-CIRCUIT TO GROUND, INTERMITTENT FAULTS
Check signal cable between engine control module (ECM) #A68 (#B8) and air conditioning (A/C) pressure sensor #2 for an intermittent open circuit according to OPEN-CIRCUIT, 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
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