The Engine control module (ECM) is installed in the passenger compartment.
The ECM is a solid state device that uses internal circuitry to process the input signals according to control algorithms.
A voltage regulator inside the ECM controls power supply to output transistor.
If the signal exceeds threshold value, the ECM judged this as a fault and DTC is set.
Item | Detecting Condition | Possible Cause |
DTC Strategy | ● Rationality check | ● Faulty ECM |
Enable Conditions | ● When Ignition switch is off | |
Threshold Value | ● Engine < 500 rpm within 1.5 | |
Diagnostic Time | ● 0 sec. | |
MIL Fuel Limit Fuel Cut EGR Off | ● No ● No ● No ● No |
