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MID 128 / 144, PPID 132 Throttle

calibrated position

FMI 3 – Voltage above normal or shorted high

Fault code explanation: Faulty throttle potentiometer / Faulty throttle potentiometer circuit

Fault indication: DCU: Engine warning in DCU display.

CIU: Flash code

Flash code

Electrical fault: 2.8

Value fault: None.

Symptom: Engine goes to idle. If the accelerator is released at first and then pressed

down again the engine can be forced to run using the idle contact.

Preconditions: NOTICE! If the control panel ONLY communicates on the J1939 communi-

cation

and

NOT the redundancy of J1587 for start, stop and throttle this fault

code is active in the VODIA and that is normal.

Possible reason: • Open circuit in any or all of the throttle signals.

• Short circuited throttle potentiometer signal cable to 5V voltage or to

battery voltage.

• Faulty sensor.

Suitable action: 1 Check that the throttle potentiometer is connected correctly.

2 Check cable harness between CIU and the CIU throttle potentiometer.

3 Check the function of the throttle potentiometer. Check the contact

pressure in socket 2, 3 and 3 in the CIU connector.

FMI 4 – Voltage below normal or shorted to lower voltage