PINPOINT TEST A : The Cruise Control Is Inoperative
- A1 CHECK FOR PCM DTCs
- Ignition ON.
- Using a scan tool, perform the PCM KOEO self-test.
Are any DTCs recorded?
Yes REFER to Electronic Engine Controls . No GO to A2. - A2 CHECK FOR SCCM DTCs
- Using a scan tool, perform the SCCM self-test.
Are any DTCs recorded?
Yes REFER to Steering Column Switches . No GO to A3. - A3 CHECK THE C-CM DTCs
- Using a scan tool, perform the C-CM self-test.
Are any DTCs recorded?
Yes Refer to Cruise Control . No GO to A4. - A4 CHECK FOR LOST COMMUNICATION DTCs
- Using a scan tool, clear continuous DTCs from all modules.
- Ignition OFF.
- Ignition ON.
- Wait at least 10 seconds.
- Retrieve all continuous DTCs from all modules.
Are any lost communication DTCs set in the C-CM module?
Yes Refer to Cruise Control . No GO to A5. - A5 CHECK FOR ABS MODULE DTCs
- Using a scan tool, perform the ABS module self-test.
Are any DTCs recorded?
Yes REFER to Anti-Lock Brake System (ABS) and Stability Control . No GO to A6. - A6 CHECK FOR BCM DTCs
- Using a scan tool, perform the BCM module self-test.
Are any DTCs recorded?
Yes REFER to Multifunction Electronic Modules . No GO to A7. - A7 CHECK THE STOPLAMP SWITCH (BOO1) AND CRUISE CONTROL DEACTIVATOR SWITCH (BOO2) PIDs
- Using a scan tool, view Powertrain - Cruise Control PIDs.
- Monitor the powertrain PIDs BOO1 (stoplamp switch) and BOO2 (cruise control deactivator switch) while applying and releasing the brake pedal.
Brake Pedal Position BOO1 PID BOO2 PID Released Off Off Applied On On
Do the PID values agree with the brake pedal position?
Yes GO to A8. No GO to Pinpoint Test B . - A8 CHECK THE CRUISE CONTROL SWITCH
- Using a scan tool, view Powertrain - Cruise Control PIDs.
- Press each cruise control switch while monitoring the cruise control switch PID (SCCS).
Cruise Control Switch SCCS PID Value - None pressed RES/CNCL RESUME/CANCEL ON/OFF On/Off SET (pressed up) SET/+ SET (pressed down) SET/- GAP (pressed up) GAP- GAP (pressed down) GAP+
Does the PID value agree with the switch position?
Yes GO to A9. No If only one switch does not display the correct PID value, INSTALL a new LH steering wheel switch. REFER to Steering Column Switches . Otherwise, GO to Pinpoint Test C . - A9 CHECK FOR CORRECT PCM OPERATION
- Disconnect all the PCM connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect all the PCM connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new PCM. REFER to Electronic Engine Controls - 2.0L GTDI , REFER to Electronic Engine Controls - 3.5L Ti-VCT, 3.7L Ti-VCT or REFER to REFER to Electronic Engine Controls - 3.5L GTDI. No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.