93
Electronic Diesel Control (EDC) Diagnostic Trouble Codes (DTC)
DTC Code definition Cause Reaction Action
1.1 No fault OBD activated –
1.2 Control calibration Neutral position switch closed or Check neutral position switch function (closed
(neutral position switch) open at wrong point in relation to at neutral position). Erase DTC.
potentiometer value Recalibrate control
1.3 Control calibration Angle between start of throttle opening Check mounting of potentiometer.
(diff. too small) and WOT too little Erase DTC. Recalibrate control
1.4 Control calibration NP switch closed within for Adjust NP switch. Erase DTC.
(too short neurtral pos.) small angle range on control Recalibrate control
1.5 Control calibration Shift solenoid faulty, reverse gear Check connections on solenoids.
(shift solenoid faulty) (open or short circuit) Check solenoids for short/open-circuit.
Erase DTC. Recalibrate control
1.6 Control calibration New installation Starter motor does not activate Calibrate control. DTC erased automatically
(no calibration)
2.2 Control rod sensor Control rod position sensor gives Engine stopped by system Check connections on injector pump and
non-valid value to control module module. Erase DTC. Start the engine.
Contact authorized workshop if fault persists.
2.3 Control rod actuator Actuator using too much/too Main relay cuts out (engine stops) Check connections on injector pump and
little current. module. Erase DTC. Start the engine.
Open-circuit, connection 42 Contact authorized workshop if fault persists.
2.4 RPM sensor RPM sensor gives non-valid value Engine stopped by system Check connections on injector pump and
to control module control module. Erase DTC. Start the engine.
Contact authorized workshop if fault persists.
2.6/ Control potentiometer System receiving no signals from Engine runs at constant 1000 rpm Check wiring/connections on control potent-
2.7 control potentiometer iometer and wiring and connections to
control position. Erase DTC. Start the engine.
If the fault persists shifting can be carried out
directly on the reverse gear solenoids
3.1 Shift control potentiometer System receiving no signals from Check wiring/connections on shift potentio-
shift potentiometer meter and wiring and connections to
control position. Erase DTC. Start the engine.
If the fault persists shifting can be carried out
directly on the reverse gear solenoids
3.2 Charge air temp. sender System receiving non-valid values from System registers nominal charge air temp. Check wiring and sender connections.
charge air temp. sender is 55°C (131°F). Can give marginally redu- Check sender. Erase DTC
ced performance/more smoke in exhaust
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