Diagnostic Trouble Code (DTC) Information ECM-9280

Condition 

Fig 1: Identifying Throttle Unit & Potentiometer

Courtesy of VOLVO CARS CORPORATION

The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers that the throttle angle at the return limit position is outside the programmed parameter when trying to adapt the throttle unit.

Substitute Value 

None.

Possible Source 

• The throttle is sticking or is blocked (e. g. oil film, dust)
• Contact resistance or oxidation in the terminals between the engine control module (ECM) and the electronic throttle unit
• Damaged throttle unit.

Fault symptom[s] 

• Driving/Poor performance/lacks power
• Idling/Uneven idle