Control unit reset
|  | General
|  | Fault types
|  | Remedial measures
|  | See also:
General The main computer has detected an incorrect condition and restarted the control unit. This usually occurs in connection with a message of the safety computer. Should this fault reoccur, please inform the VOITH customer service. The following numbers provide information on the reported condition. Fault types For a caption of the remedial measures, see below.
Code | Fault type | Remedy no.
0011h | Incorrect interrupt level when calling task | 1
0021h | Incorrect AD channel requested | 1
0022h | AD converter and/or PEC transfer faulty | 1
0041h | Undefined "switch" | 1
0051h | Undefined "switch ngang" | 1
0061h | Timer load register VARIO1 defective | 2
0062h | Timer load register VARIO2 defective | 2
0071h | Undefined "switch ngang" | 1
0081h | Incorrect interrupt level when calling task | 1
0091h | Both copied blocks in RAM are invalid (EEPROM) | 2
0092h | Both copied blocks in RAM are invalid (EEPROM) | 2
00A1h | Incorrect next gear (!=1) for ANS | 1
00B1h | Incorrect next gear (!=1) for EK inhibit | 1
00C1h | Undefined "switch ngang" | 1
00D1h | Main program has exited infinite loop | 1
00D2h | Internal RAM in the 80C166 is defective | 2
00D3h | Invalid dataset in the EEPROM | 1, 2
00E0h | Invalid command code | 1, 2
00E1h | Invalid command code with protected command | 1, 2
00E2h | Word access to odd address | 1, 2
00E3h | Command code branch to odd address | 1, 2
00E4h | Illegal access to unconfigured external bus | 1, 2
00F1h | Incorrect interrupt level when calling task | 1
0101h | Undefined "switch" in operating mode | 1
0103h | Incorrect interrupt level when calling task | 1
0104h | PEC reload interrupt no longer arrives | 1, 2
0105h | dS shut-down by safety computer (sequential fault) | 3
0106h | Faulted communication of control unit <>safety computer | 2
0111h | RAM pointer at EEPROM copy to wrong address | 1
0113h | RAM pointer at EEPROM copy to wrong address | 1
0121h | Incorrect interrupt level when calling task | 1
0151h | RAM test pointer points to wrong address | 1
0152h | External RAM is defective! | 2
0153h | RAM test pointer points to wrong address | 1
0154h | External RAM is defective! | 2
0155h | RAM test pointer points to wrong address | 1
0156h | Fault during XRAM test | 2
0161h | Brake > 6; this brake step does not exist. | 1
0171h | Shift in progress on rwg_neut() call | 1
0181h | No shift, but EK, HLM or FSZM | 1
01A1h | Undefined switch (Irwg_gang) | 1
01B1h | Undefined switch (Irwg_gang) | 1
01C1h | Undefined switch (gang) | 1
01D1h | Incorrect interrupt level when calling task | 1
01E1h | Fault during parameter transfer | 1
01F1h | Undefined switch (sende_index) | 1
01F2h | Undefined switch (sende_index) | 1
0201h | No shift, but SV, HLM, FSZM, NLM active | 1
0211h | System stack overflow | 1
0221h | System stack underflow | 1
0231h | Incorrect vario no. received as parameter | 1
0232h | Incorrect controller no. received as parameter | 1
0233h | Control logic fault in VARIO1 | 2
0234h | Control logic fault in VARIO2 | 2
0235h | VARIO1: DA channel update time exceeded | 2
0236h | VARIO2: DA channel update time exceeded | 2
0237h | Undefined parameter on threshold change | 1
0241h | RAM cell we_port is defective | 2
0291h | Shift from 4th gear and not into 3rd gear | 1
02A1h | Watchdog timer defective! | 2
02B1h | Undefined switch (bremse) | 1
02C1h | Incorrect interrupt level when calling task | 1
02D1h | Undefined "switch ngang" | 1
02F1h | Preparation for system stack test | 1
02F2h | Preparation for user stack test | 1
0301h | System stack test | 1
0302h | User stack test | 1
0303h | User stack test | 1
0320h | Watchdog timer defective! | 2
0340h | resetMode undefined during sysinit | 1
0350h | Fault during test of Flash-EPROM | 2
0360h | PWM brake request calculation locked at SR | 1, 2
0361h | SR communication during sysinit faulty | 2
0362h | Mechanical fault or undervoltage at the dS relay during initialization of the control unit (tested by SR) | 4
0370h | Dataset does not match the control unit (no WE ECU) | 5
0380h | Dataset fault: multiple signal-pin assignment | 5
0400h | Dataset too short for current software | 5
0401h | Both DS blocks in dataset invalid | 1, 2
0403h | Failure copying from EEPROM to RAM | 2
0410h | U(ref) for ADC outside 4.6 ... 5.4 V | 2
0420h | IGRs not calibrated | 2
0430h | Dataset fault shift program | 5
0431h | Dataset fault shift program | 5
0432h | Dataset fault shift program | 5
0433h | Dataset fault shift program | 5
0434h | Dataset fault: inadmissible tyre radius | 5
0435h | Dataset fault: inadmissible axle ratio | 5
0440h | Mechanical blocking of RBK or RBG | 6
0DDDh | Unprovoked watchdog overflow | 1
Remedial measures
Remedy no. | Description
1 | Indication of a software fault. The fault can appear like a software fault but it may also be caused by a defective component in the transmission control unit. If possible, use the control unit of an identical vehicle of the fleet and check if the fault still exists.
2 | Indication of a defective component in the transmission control unit. Replace the control unit.
3 | Consecutive fault of a shut-down by the safety computer. The fault memory should contain further faults - also those reported by the safety computer. See page "Safety computer messages".
4 | The safety computer has detected a fault during the test of the dS relay. Check if the relay switches mechanically. Check the relay for pass and correct resistance of the coil. Check the control leads and connected solenoid valve voltage for intactness. Install a new relay.
5 | Indication of a dataset in the transmission control unit not matching the application. Analyse and write down the responses / malfunction of the vehicle as exactly as possible. Request a new dataset from Voith Turbo. Hold the data of the transmission control unit ready for this.
6 | Indication of a permanent blocking at the output. Check the control block for blocking pistons / soiled oil channels. Disassemble the transmission at the output in accordance with the repair manual and find out the cause of the fault.
See also:
|  | Aftersales service
© by Voith Turbo GmbH & Co. KG send remarks to markus.zwickel@voith.com (documentation department)