DTC 13: BARO Sensor Circuit Malfunction Reset the ECM/PCM (see page 11-468). Turn the ignition switch ON (II). Is the MIL on and does it indicate DTC 13? YES - Substitute a known-good ECM/PCM and recheck. If symptom/indication goes away, replace the original ECM/PCM. NO - Intermittent failure, system is OK at this time (test-drive may be necessary).