Diagnostic trouble code (DTC) information
Condition
The engine coolant temperature (ECT) signal from the engine control module (ECM) is a pulsed signal between 0 V and 5 V with a variable frequency and fixed pulse ratio (% duty). The frequency increases with decreasing temperature.
Diagnostic trouble code (DTC) DIM-11 is stored in the combined instrument panel if the rate of the signal for the engine coolant temperature (ECT) from the engine control module (ECM) was greater than 65 ms for more than 10 seconds.
Substitute Value
None.
Possible Source
- short-circuit to ground in the signal cable
- short-circuit to supply voltage in the signal cable
- open-circuit in the signal cable
- defective combined instrument panel
- defective engine control module (ECM).
Fault symptom[s]
- The engine coolant temperature (ECT) gauge does not function (does not apply to Bi-fuel cars)
- The high engine coolant temperature (ECT) warning lamp flashes.
The lamp flashes for 10 seconds if a fault is detected (Bi-fuel cars only).