What does fault code ECM-2128 mean?

Diagnostic fault code details for ECM-2128 (Volvo C30 (2007–2013), Volvo C70 (2006–2013), Volvo C70 (2006–2013)). Repair service at OBD Tuning.

VOLVO

ECM-2128 - Throttle/Pedal Position Sensor/Switch E Circuit 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 (5)

What does this fault code mean?

The engine control module checks the pedal sensor signal, which runs through the central electronic module (CEM) and over the CAN bus, and stores the code when the signal is too high. The fault can be caused by a CAN fault, a faulty analogue value from the pedal sensor or a damaged sensor.

Possible causes

Fault in CAN communication between the engine control module and the CEM
Fault in the pedal sensor's analogue value
Damaged accelerator pedal position sensor

What you can do

1Check that the fuses are intact; their location is given in the owner's manual
2Test the relevant functions during a test drive to see whether the fault gives symptoms right now
3Check the connectors at the pedal and where the wiring joins for oxidation and contact resistance
4Have a diagnostic tool? Read the pedal value in live data while you press and release the pedal, and see whether it goes too high or jumps
5If the connectors are sound but the fault remains, have a workshop check the CAN communication and replace the pedal sensor if needed

Symptoms you may notice1

Text message and warning symbol in the display

What the fault can affect1

Engine torque may be limited

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

VOLVO

ECM-2128 - Throttle/Pedal Position Sensor/Switch E Circuit 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 (5)

What does this fault code mean?

Possible causes

Fault in CAN communication between the engine control module and the CEM
Fault in the pedal sensor's analogue value
Damaged accelerator pedal position sensor

What you can do

1Check that the fuses are intact; their location is given in the owner's manual
2Test the relevant functions during a test drive to see whether the fault gives symptoms right now
3Check the connectors at the pedal and where the wiring joins for oxidation and contact resistance
4Have a diagnostic tool? Read the pedal value in live data while you press and release the pedal, and see whether it goes too high or jumps
5If the connectors are sound but the fault remains, have a workshop check the CAN communication and replace the pedal sensor if needed

Symptoms you may notice1

Text message and warning symbol in the display

What the fault can affect1

Engine torque may be limited

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

ECM-2128 - Throttle/Pedal Position Sensor/Switch E Circuit High

Volvo models this fault code applies to

Throttle/Pedal Position Sensor/Switch E Circuit High

Accelerator pedal (AP) position sensor, circuit 2.Signal too high

Applies to the following models:

What does this fault code mean?

Possible causes

What you can do

Symptoms you may notice1

What the fault can affect1

ECM-2128 - Throttle/Pedal Position Sensor/Switch E Circuit High

Volvo models this fault code applies to

Throttle/Pedal Position Sensor/Switch E Circuit High

Accelerator pedal (AP) position sensor, circuit 2.Signal too high

Applies to the following models:

What does this fault code mean?

Possible causes

What you can do

Symptoms you may notice1

What the fault can affect1