B3538
B3538 - Oil Life Reset Switch Circuit LowSchematic:
CIRCUIT DESCRIPTION
The CHANGE OIL SOON light 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 reset is completed, the BCM will turn Off the CHANGE OIL SOON light.
DTC PARAMETERS
^ Ignition is in START position
^ Vehicle speed is greater than 10 km/h (6 mph)
^ Circuit 1579 shorted to ground
^ No light will illuminate in I/P.
DIAGNOSTIC AIDS
^ Check for poor connection at the BCM. Inspect harness connectors for backed out terminals, improper terminal mating, broken connector locks, improperly formed or damaged terminals and poor terminal-to-wire connection (terminal crimped over wire insulation and not conductors).
^ Inspect 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.
TEST
Diagnostic Chart:
