Diagnostic Trouble Code (DTC) Information

ECM-9190 THROTTLE UNIT, INTERNAL FAULT
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION




Condition
The throttle unit has registered an internal or external fault and is unable to follow the requested throttle angle from the engine control module (ECM). Diagnostic trouble code (DTC) ECM-9190 is stored in the engine control module (ECM).

Substitute value
- the accelerator pedal (AP) is ignored when braking
- the cruise control cannot be activated
- the engine speed (RPM) is limited using fuel shut off. The maximum permitted engine speed depends on the accelerator pedal (AP) position
- the throttle unit in mechanical limp home mode, the throttle disc in the fixed position.

Possible source
- the power supply to the throttle unit
- something is blocking the throttle position sensor (an oil film, dust etc.)
- poorly charged battery or corroded in the connecting cables
- defective throttle unit.

Fault symptom[s]
- the accelerator pedal (AP) is ignored when braking
- the cruise control cannot be activated
- uneven idle
- jerks during engine braking
- very poor accelerator response
- maximum speed approximately 50 km/h
- the ETS warning lamp lights (C70 and S/V70 �2000 only).