Ignition Run Output Short
NOTE:
If a failure occurs in HVAC, overhead console or ABS system, this DTC will set.
NOTE:
After making any repairs, perform BODY VERIFICATION TEST
under VERIFICATION TESTS.
- Using scan tool, record and erase DTCs. Turn ignition off and back on. Start vehicle and let idle. Recheck for DTCs. If DTC resets, go to next step. If DTC does not reset, check for intermittent conditions at Body Control Module (BCM) connectors and circuits.
- Turn ignition off. Disconnect A/C-heater control panel connector. See A/C-HEATER CONTROL PANEL under REMOVAL & INSTALLATION. Turn ignition on. Using DVOM, measure voltage between ground and Gray/Pink wire at A/C-heater control panel connector C1 terminal No. 13 (automatic A/C) or connector C2 terminal No. 5 (manual A/C). See Fig 1 or Fig 2 . If voltage is 10 volts or less, go to next step. If voltage is greater than 10 volts, go to step 5 .
- Locate and access BCM connector C4. See COMPONENT LOCATIONS . See Figure . Turn ignition on. Using DVOM connected to ground, backprobe and measure voltage at BCM connector C4 terminal No. 10 (Gray/Pink wire). If voltage is 10 volts or less, go to next step. If voltage is greater than 10 volts, repair open in Gray/Pink wire.
- Turn ignition off. Disconnect BCM connector C4. Using DVOM, measure resistance between ground and BCM connector C4 terminal No. 10 (Gray/Pink wire). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, repair short to ground in Gray/Pink wire.
- Turn ignition off. Disconnect overhead console connector. See OVERHEAD CONSOLE under REMOVAL & INSTALLATION. Turn ignition on. Using DVOM, measure voltage between ground and overhead console connector terminal No. 6 (White/Pink wire). See Fig 3 . If voltage is 10 volts or less, go to next step. If voltage is greater than 10 volts, go to step 8 .
- Locate and access BCM connector C3. See COMPONENT LOCATIONS . See Figure . Turn ignition on. Using DVOM connected to ground, backprobe and measure voltage at BCM connector C3 terminal No. 17 (White/Pink wire). If voltage is 10 volts or less, go to next step. If voltage is greater than 10 volts, repair open in White/Pink wire.
- Turn ignition off. Disconnect BCM connector C3. Using DVOM, measure resistance between ground and BCM connector C3 terminal No. 17 (White/Pink wire). If resistance is greater than 5 ohms, go to next step. If resistance is 5 ohms or less, repair short to ground in White/Pink wire.
- Turn ignition off. Disconnect Controller Anti-Lock Brake (CAB) connector. See COMPONENT LOCATIONS . Turn ignition on. Using DVOM, measure voltage between ground and CAB connector terminal No. 10 (Dark Green/Pink wire). See Fig 4 . If voltage is 10 volts or less, go to next step. If voltage is greater than 10 volts, check for intermittent poor connections or faulty circuits at CAB, BCM, A/C-heater control panel or overhead console. Repair as necessary.
- Turn ignition on. Using DVOM connected measure voltage between ground and BCM connector C3 terminal No. 31 (Dark Green/Pink wire). If voltage is 10 volts or less, go to next step. If voltage is greater than 10 volts, repair open in Dark Green/Pink wire.
- Turn ignition off. Using DVOM, measure resistance between ground and BCM connector terminal No. 31 (Dark Green/Pink wire). If resistance is greater than 5 ohms, replace BCM. See BODY CONTROL MODULE under REMOVAL & INSTALLATION. If resistance is 5 ohms or less, repair short to ground in Dark Green/Pink wire.