Fault code table.
Code | Fault location |
- | Norm |
41 | Load sensor - open wiring or short circuit |
42 | Speed sensor #1 (in the instrument cluster) - broken wiring or short circuit |
61 | Faulty speed sensor No. 2 (at the checkpoint) - broken wiring or short circuit |
62 | Solenoid valve No. 1 - open wiring or short circuit |
63 | Solenoid valve No. 2 - open wiring or short circuit |
64 | Lockout solenoid valve - open wiring or short circuit |
65 | Shift torque control solenoid valve - open circuit or short circuit |
86 | Speed sensor - open wiring or short circuit |
88 | Break in the wiring between the engine control unit and the gearbox control unit or short circuit |
Note: codes 62, 63, 64 or 65 indicate an electrical problem with the solenoid valves. Malfunctions in the mechanical part, such as valve sticking, are not fixed by the self-diagnosis system.
Note:
- Malfunctions that occur in automatic transmissions can be associated either with the engine, or with the control system, or with the gearbox itself. Therefore, before starting the check, it is necessary to determine the area of their occurrence.
- Troubleshooting should start with the simplest operations and continue in order of increasing complexity.
Self-diagnosis system
1. The self-diagnostic function is built into the electronic transmission control system. With overdrive indicator "O/D OFF" the system can warn the driver about a malfunction in the gearbox. In addition, using this indicator, you can determine the code of the malfunction that has occurred.
Attention:
- Warning signals and fault codes can only be read when the overdrive switch is in the "ON" (button pressed). If the switch is in position "OFF" (button released), then the overdrive indicator "O/D OFF" lights up continuously without blinking.
- Low battery voltage may cause diagnostic failure. Therefore, always check the battery before starting diagnostics.
- If a malfunction of the electronic control system of the gearbox is detected by the self-diagnosis function, the indicator on the dashboard lights up "O/D OFF" and the gearbox control system goes into emergency mode (mode "drive home"). This mode is used only to deliver the car to a car service.
2. Fault codes can be identified by the number of flashes of the overdrive indicator "O/D OFF". To do this, you need to bridge the contacts E1 and TE1 (Tt) diagnostic socket.
3. Fault codes are stored in the memory of the electronic transmission control unit even after the engine is turned off. Clearing the memory of the control unit (reset codes after repair) performed when switched off "ignition" by disconnecting the fuse "ECD".
Checking the overdrive indicator
1. Turn on the ignition.
2. Overdrive indicator "O/D OFF" should be lit when the switch is in the position "OFF" (button released).
3. When setting the overdrive switch to the "ON" (button pressed) indicator "O/D OFF" should go out. If the indicator flashes, then this is a sign of a malfunction in the electronic part of the gearbox control system.
Reading trouble codes
1. Turn on "ignition" and overdrive.
Attention: do not start the engine.
2. Short the terminals contacts E1 and TE1 (Tt) diagnostic connector
3. If there is no fault, the indicator will flash once every 0.5 seconds.
4. If a fault is present, the indicator will flash at a variable rate. Determine fault codes.
Note:
- The fault code consists of two digits, the first digit is determined by the initial series of flashes, then after a pause of 1.5 seconds, a second series of flashes follows, which corresponds to the second digit of the code.
- If there are two or more fault codes, the smallest code will always be displayed first, and then the remaining codes in ascending order. There will be a 2.5 second pause between codes.
- After the output of all fault codes, a pause of 4 seconds follows, then the output of the codes is repeated.
5. After reading the fault codes, disconnect the contacts of the diagnostic connector.
Resetting trouble codes
1. After the repair, it is necessary to clear the memory of the gearbox control unit from the fault codes that are stored there. To do this, with the "ignition" remove the fuse "ECD" for 10 or more seconds (the lower the temperature, the longer).
Note:
- To reset the trouble codes, you can disconnect the negative battery terminal for a while. However, the contents of the memory of control units of other systems will be lost.
- To reset the trouble codes, you can disconnect the TCM connector.
- If the fault code has not been reset, then it will be stored in the memory of the control unit, and will appear during subsequent diagnostics.
2. After resetting the fault codes, it is necessary to check - the overdrive indicator flashes "O/D OFF" should correspond to the normal state of the checkpoint.