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Home >> Volvo >> 2001 >> S60 2.4 L5-2.4L VIN 61 B5244S >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> Diagnostic Trouble Code Descriptions >> Manufacturer Code Charts >> Engine Control System >> ECM Code Descriptions >> DTC ECM-200A
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DTC ECM-200A






Condition







Diagnostic trouble code (DTC)ECM-200A is stored if the engine control module (ECM) registers that the engine coolant temperature (ECT) does not increase a certain number of degrees (depending on outer temperature within a certain time of starting.

Substitute value
- if the temperature sensor in the mass air flow (MAF) sensor is OK it is used as the start temperature. Otherwise the value is set at +20 degrees C (68 degrees F) after starting the engine coolant temperature (ECT) is calculated theoretically engine cooling fan (FC) at low-speed.

Possible source

Faulty signal
- contact resistance in connector
- defective thermostat
- defective engine coolant temperature (ECT) sensor.

Fault symptom[s]
- difficult to start when cold
- driveability problems during warm-up cycle
- engine cooling fan (FC) operates constantly.
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