ME9 / P0053 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Malfunction Indicator Lamp

P0053 00

Fault symptom

Malfunction Indicator Lamp

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Battery voltage should be between 10.7 and 18 Volts.

Engine running.

NONE of the following DTCs must be detected:

•	P0030, P0031, P0032

Fault criteria:

Control module's internal resistance for measuring preheating current exceeds 45 Ohm for more than 40 seconds.

Diagnostic help

Diagnosis regards:

The internal connection in the control module.

Functions in the diagnostic tool related to the fault:

Test value:

•	O2S 1 Preheating

Activation:

•	O2S 1 Preheating

(See also description of readings/activations in diagnostic tool)