What does fault code ECM-0653 mean?

Diagnostic fault code details for ECM-0653 (Volvo C30 (2007–2013), Volvo C30 (2007–2013), Volvo C30 (2007–2013)). Repair service at OBD Tuning.

VOLVO

ECM-0653 - Power supply 2. Signal too high

System

Engine Control Module (ECM)

Volvo models this fault code applies to

This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.

Applies to the following models:

4 models

C30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)

Show models by year and engine (13)

What does this fault code mean?

A sensor receives too high a supply voltage because its supply wire is shorted to battery voltage. The ECM registers this and sets the code. The fault shows as a warning symbol and text message in the display.

Possible causes

Supply wire to the sensor short-circuited to battery voltage

What you can do

1Inspect the wiring from the control module to the sensor for chafing, especially where it may touch a live wire
2Check that the connectors at the sensor and the control module are tight and clean
3With the ignition off, use a multimeter to check whether the supply wire has contact with battery voltage
4If no short remains but the fault persists, a workshop should decide whether the sensor or the control module is damaged

Symptoms you may notice1

Yellow warning symbol with text message in the display

General guidance for car owners. Diagnosis on the car can point to a different cause.

VOLVO

ECM-0653 - Power supply 2. Signal too high

System

Engine Control Module (ECM)

Volvo models this fault code applies to

This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.

Applies to the following models:

4 models

C30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)

Show models by year and engine (13)

What does this fault code mean?

Possible causes

Supply wire to the sensor short-circuited to battery voltage

What you can do

1Inspect the wiring from the control module to the sensor for chafing, especially where it may touch a live wire
2Check that the connectors at the sensor and the control module are tight and clean
3With the ignition off, use a multimeter to check whether the supply wire has contact with battery voltage
4If no short remains but the fault persists, a workshop should decide whether the sensor or the control module is damaged

Symptoms you may notice1

Yellow warning symbol with text message in the display

General guidance for car owners. Diagnosis on the car can point to a different cause.

ECM-0653 - Power supply 2. Signal too high

Volvo models this fault code applies to

Power supply 2. Signal too high

Reference voltage B. Signal too high

Applies to the following models:

What does this fault code mean?

Possible causes

What you can do

Symptoms you may notice1

ECM-0653 - Power supply 2. Signal too high

Volvo models this fault code applies to

Power supply 2. Signal too high

Reference voltage B. Signal too high

Applies to the following models:

What does this fault code mean?

Possible causes

What you can do

Symptoms you may notice1