Code 13 - Barometric (BARO) Sensor
NOTE:
Barometric sensor is built into ECM. Circuit testing is not required.
- Turn ignition off. Remove BACK-UP fuse (7.5-amp) from underhood fuse/relay box for 10 seconds to reset ECM.
- Retrieve codes. If Code 13 does not appear, problem is intermittent. Inspect for poor connections at ECM connector and Transmission Control Module (TCM) connector (if equipped). Test-drive vehicle and check again. If Code 13 appears, temporarily substitute known good ECM, then retest system.