Fault Conditions

If PCM registers that a signal from the internal atmospheric pressure sensor is faulty, PCM interprets this as a fault and ECM-1000 is stored after 20 seconds. Faulty signal is interpreted as too high, or too low.

ECM-1000 activates MIL when set.

Control module applies a substitute value while ECM-1000 is set. Control module assumes 14.7 psi air pressure corresponding to sea level.