ME9 / P0141 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Malfunction Indicator Lamp

P0141 00

Fault symptom

Malfunction Indicator Lamp

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Battery voltage should be between 10.7 and 16 Volts.

Engine running.

Preheating active.

Intake air temperature above -7°C.

No fuel shut-off.

Fault criteria:

When internal resistance in the sensor is outside of the range 880 - 13440 Ohm for more than 6 seconds.

OK report:

Fault criteria NOT fulfilled.

Fault handling:

Type III

(See section Fault handling III, "Other emission-related components and functions" for more information.)

Checking the wiring harness

Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:

Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

Test value:

•	O2S 2 Preheating

Activation:

•	O2S 2 Preheating

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