Electrical systems – 5000 Diagnostic and troubleshooting Order number 229735-040
Date 2005-11-04
Valid from serial number 904519-
T-code 781
Table 11: List of error codes Code Description
Possible cause / Hint or Solution
C90
Communication problem with the SEU unit no.1 (A36)
The A2 card is not receiving expected data from the SEU unit 1. / Verify the voltage supplied to the SEU unit (A36: POWER SUPPLY 24VDC) and check that the CAN cabling is OK. This error can also occur if an option parameter has been accidentally activated but no option (with an SEU) is fitted./ Ensure all option parameters (16 to 19) are set to inactive.
C91
Communication problem with the SEU unit no.2
The A2 card is not receiving expected data from the SEU unit 2./Verify the voltage supplied to the SEU unit 2 (POWER SUPPLY 24VDC) and check that the CAN cabling is OK. This error can also occur if an option parameter has been accidentally activated but no option (with a second SEU) is fitted. / Ensure all option parameters (16 to 19) are set to inactive.
C92
Programming warning (SEU unit no.1)
Incorrect programming of SEU unit 1 [A36]. The truck travels at creep speed. / May have been caused by incorrect allocation of an output during adjustment of the option parameters (16 to 19). Verify all settings of any option parameters.
C93
Programming warning (SEU unit no.2)
Incorrect programming of SEU unit 2. The truck travels at creep speed. / May have been caused by incorrect allocation of an output during adjustment of the option parameters (16 to 19). Verify all settings of any option parameters.
E101
Transistor regulator [A1] incompatible with the type of truck
An incorrect transistor regulator type has been installed. / Verify that the correct transistor regulator type has been installed.
E104
Brake switch transistor output in transistor regulator [A1] shorted
Defective transistor regulator [A1]. / Check cables and magnetic coil to the brake [Y1].
E106
Digital output fault or field current limit
Attempting to drive more current than specified from outputs. OR problem regulating field current. Internal transistor regulator [A1] fault.
E107
Main contactor not activated [K10]
Problem with main contactor tips or cabling (open circuit). Contactor control wire not connected. Incorrect contactor output from the transistor regulator (switched off). / Inspect the main contactor tips [K10]. Check control wires to main contactor. Check contactor drive output goes {low} [A1].
E108
Main contactor tips welded or open circuit in coil [K10]
Main contactor tips welded. Contactor drive output in controller faulty (on). / Check main contactor tips. Check contactor drive output goes {high} [A1].
© TIEE SARL
Service Manual
7SM08F
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