Circuit Description
The "CHANGE ENGINE OIL" telltale is reset by depressing the oil
life reset push-button switch. This switch is located in the underhood junction block.
Pressing this switch grounds circuits 1579. When grounded, the body control
module (BCM) requests the engine controller to perform an oil life reset. When the
reset is completed, the BCM will turn Off the "CHANGE ENGINE OIL" telltale.
Conditions for Setting the DTC
| • | Ignition is in "RUN" position. |
| • | Vehicle speed is greater than 10 km/h (6 mph) |
| • | Circuit 1579 shorted to ground |
Diagnostic Aids
| • | Inspect the wiring harness for damage. Check for broken or chaffed insulation. |
| • | If fault is suspected to be intermittent, wiggling harness wiring may
help in locating fault. |
DTC B3538
