Electrical systems – 5000 Diagnostic and troubleshooting T-code 787, 788
Valid from serial number 931876-
Date 2006-04-10
Order number 232370-040
Table 28: List of error codes Code
Description
Possible cause / Hint or Solution
E125
Steer servo - internal short circuit [A5, M6]
Defective steer servo [A5,M6] / Restart the truck
E126
Steer servo - current offset error [A5, M6]
Defective steer servo [A5,M6] / Restart the truck.
E127
Steer servo - temperature too high [A5, M6] (>85º C)
Steering activity too intensive Defective steer servo [A5,M6] / Restart the truck.
E128
Not applicable at present
-
E129
Steer servo - supply undervoltage
Battery charge too low Intermittent connection in servo supply circuit [A5] Steer servo fuse [F52] faulty or blown. / Check condition of Fuse [F52] Charge battery.
E130
Steer servo - analogue steer signal input fault [R2]
Faulty steer angle potentiometer. [R2] Intermittent connection in potentiometer circuit [R2,A5] / Check wiring to potentiometer [R2] Move tiller unit handle in all directions to ensure no wiring problems exist.
E131
Steer servo - analogue steer signal input fault
Faulty steer angle potentiometer. [R2] Intermittent connection in potentiometer circuit [R2,A5:INP.A_IN0] / Check 0,4 to 4.8V between wires 9492, check wiring to potentiometer [R2] Move tiller unit handle in all directions to ensure no wiring problems exist.
E132
Steer servo - current limit reached
Steered portion of drive unit not moving freely./ Check for free movement of drive wheel on floor. Check steering drive train is free of dirt or other foreign objects. See also code C82.
E133
Steer servo - analogue steer signal input fault
Faulty steer angle potentiometer. [R2] Intermittent connection in potentiometer circuit [R2,A5:INP.A_IN1] / Check 0,4 to 4.8V between wires 9493 , check wiring to potentiometer [R2] Move tiller unit handle in all directions to ensure no wiring problems exist.
E134
Steer servo - analogue steer signal input short circuit
Faulty steer angle potentiometer. [R2] or wiring Short circuit between [A5:INP.A_IN1 and INP.A_IN0] / Check wiring to potentiometer. [R2]. Move tiller unit handle in all directions to ensure no wiring problems exist.
E135
Steer servo - offset value error
Requires recalibration / Recalibrate steering (parameter #36) See # 36 - Steer servo calibration on page 46
E136
Steer servo - steer angle potentiometer error
Defective potentiometer [R2] / Ensure potentiometer is fitted correctly. Recalibrate steering. See # 36 - Steer servo calibration on page 46.
E137
Steer servo - checksum error on received data
Faulty wiring. / Check CAN bus signal cables and connections.[A5, A2] Restart the truck.
10- 68
Service Manual
7LOP10CW, 7LOP10CF
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