8.3. Diagnostics of electric components and reading of codes of malfunctions
The system of electronic control by transmission consists of the control unit (TSM) located under a back seat, electromagnets of management, various sensors and sensors switches.
If TSM reveals malfunctions in chains of management, it bring them in memory. For reading of codes the electronic tester of VAG 1551 with VAG 1551/3 adapter is used.
Remark: All information on reading of codes contains in a tester.
Alternatively detection of malfunctions can be made by measurement of values of resistance and tension by means of VAG 1598/18 tester (Address tables).
Check of tension is made without shutdown of the rechargeable battery, - the tester is connected to TSM and its electrical wiring. When checking resistance disconnect a negative wire from the battery and connect a tester to TSM electrical wiring plait. Leave to TSM disconnected.
At detection of malfunction it is necessary to make repair of an electrical wiring or corresponding element of a chain.
If everything is all right, therefore, TSM is damaged actually.
Check of tension and resistance for the purpose of detection of malfunctions of electric elements
| Contacts on VAG 1598/18 | Subject to check uchas- system current | Conditions, subjects to performance and additional procedures | Nominal values | Actions for identification causes of defect |
| 23 + 1 | Tension TSM food | Ignition is included (a key in position of ON) | Tension close to battery tension | Check a state the electrical wiring going from plugs No. 1 Check for existence conductivity electrical wiring, going from the plug No. 23 to to safety lock of C/15A in assembly block safety locks/relay |
| 5 + 28 | Sensor provisions throttle gates | Ignition is switched off (a key in position of OFF) Butterfly valve it is completely closed Butterfly valve it is completely open |
2100 + 3900 Ohms | Check a state electrical wiring Make calibration of the sensor |
| 5 + 50 | Sensor provisions throttle gates | Ignition is switched off (a key in position of OFF) Butterfly valve it is completely closed Butterfly valve it is completely open |
700 + 1800 Ohms | Check a state electrical wiring Make calibration of the sensor |
| 29+15 | Electromagnetic sensor switch of blocking of switching | Ignition is included (ON) the selector Lever in situation "P" or "N" The foot brake is squeezed out | Tension close to battery tension About 0.2 In | Check an electrical wiring Replace a switching blocking electromagnet |
| 15+1 | Signal from the sensor switch of stoplights | Ignition is included (ON) the Foot brake is released The foot brake is cocked | OB Tension close to battery tension | Check an electrical wiring Replace the sensor switch of stoplights |
| 63 + 1 | Mnogofunktsioknalny switch | Ignition is switched off (OFF) Switch the selector lever to provisions R, N, D, 2 and 3 Transfer the selector lever to provisions P and 1 Switch the selector lever to provisions P, R, 2 and 1 Switch the selector lever to provisions N, D and 3 | it is opened | Check correctness of connection of conducting Replace the multipurpose switch |
| 0.8 - 1.0 Ohm | ||||
| it is opened | ||||
| 40+1 | 0.8 - 1.0om | |||
| 62+ 1 | Ignition is switched off (OFF) Switch the selector lever to provisions P, R, N and D Transfer the selector lever to provisions 3, 2 and 1 | it is opened | ||
| 0.8 - 1.0 0 m | ||||
| 18 + 1 | Ignition is included (ON) Switch the selector lever to provisions P, R and N Switch the selector lever to provisions D 3, 2 and 1 | Tension close to battery tension | ||
| OB | ||||
| 55 + 67 | Electromagnetic valve 1 | Ignition is switched off (OFF) the Control unit is removed | 55 - 65 Ohms | Check a condition of a plait of an electrical wiring |
| it is opened | Replace the case of valvate assembly | |||
| 54 + 67 | Elektromagnitkny valve 2 | Ignition is switched off (OFF) the Control unit is removed | 55 - 65 Ohms | Check a condition of a plait of an electrical wiring |
| 54+ 1 | it is opened | Replace the case of valvate assembly | ||
| 9 + 67 | Elektromagnitkny valve 3 | Ignition is switched off (OFF) TSM is disconnected | 55 - 65 Ohms | Check correctness of connection of an electrical wiring |
| 9+ 1 | it is opened | Replace valvate assembly | ||
| 47 + 67 | Elektromagnitkny valve 4 | Ignition is switched off (OFF) TSM is disconnected | 4.5 - 6.5 Ohm | Check correctness of connection of an electrical wiring |
| 47 + 1 | it is opened | Replace valvate assembly | ||
| 56 + 67 | Elektromagnitkny valve 5 | Ignition is switched off (OFF) TSM is disconnected | 55 - 65 Ohms | Check correctness of connection of an electrical wiring |
| 56 + 1 | it is opened | Replace valvate assembly | ||
| 58 +22 | Elektromagnitkny valve 6 | Ignition is switched off (OFF) TSM is disconnected | 4.5 - 6.5 Ohm | Check correctness of connection of an electrical wiring |
| 58+1/22+1 | it is opened | Replace valvate assembly | ||
| 10 + 67 | Elektromagnitkny valve 7 | Ignition is switched off (OFF) TSM is disconnected | 55 - 65 Ohms | Check correctness of connection of an electrical wiring |
| 10+ 1 | it is opened | Replace valvate assembly | ||
| 23 + 29 | Electromagnetic sensor switch of blocking of switching | Ignition is switched off (OFF) TSM is disconnected | 14 - 25 Ohms | Check correctness of connection of an electrical wiring Replace assembly of an electromagnet of blocking of switching |
| 1 + 16 | Kickdown mode sensor switch | Ignition is switched off (OFF) of TSM is switched-off the Accelerator pedal the Accelerator pedal is released squeezed completely out | it is opened less than 1.5 Ohms | Check correctness of connection of an electrical wiring Adjust or replace a gas cable |
| 20 + 65 | Sensor of speed of the movement of the car | Ignition is switched off (OFF) TSM is disconnected to Switch an ohmmeter to a measurement limit 2 kOhm | 800 - 900 Ohms | Check correctness of connection of an electrical wiring Replace the car speed sensor |
| 6 + 67 | ATF temperature sensor | Ignition is switched off (OFF) TSM Is disconnected to Switch an ohmmeter to a measurement limit 200 kOhm ATF Temperature = 20 °C | 24.700 Ohm | Check correctness of connection of an electrical wiring Replace valvate assembly |
| To switch an ohmmeter to a measurement limit 200 kOhm ATF Temperature = 60 °C | About 48.800 Ohms | |||
| ATF temperature = 120 °C | About 7400 Ohms | |||
| 21 +66 | The sensor of speed of the movement (it is established on transmission) | Ignition is switched off (OFF) TSM is disconnected to Switch an ohmmeter to a measurement limit 2 kOhm | 800 - 900 Ohms | Check correctness of connection of an electrical wiring Replace the car speed sensor |
Interpretation of the VAG codes of malfunctions of a control system of transmission
| 00258 | Break, short circuit on the weight or damage of an electromagnet 1 |
| 00260 | Break, short circuit on the weight or damage of an electromagnet 2 |
| 00262 | Break, short circuit on the weight or damage of an electromagnet 3 |
| 00264 | Break, short circuit on the weight or damage of an electromagnet 4 |
| 00266 | Break, short circuit on the weight or damage of an electromagnet 5 |
| 00268 | Break, short circuit on the weight or damage of an electromagnet 6 |
| 00270 | Break, short circuit on the weight or damage of an electromagnet 7 |
| 00281 | The break of an electrical wiring, is damaged the sensor of speed of the car or the wheel sensor |
| 00293 | Break of an electrical wiring or damage of the sensor switch of the mode of transmission |
| 00297 | Break of an electrical wiring or damage of the sensor of speed |
| 00300 | Break of an electrical wiring or damage of the sensor of temperature of ATF |
| 00518 | Break / short in an electrical wiring or damage of the sensor of provision of a butterfly valve (the signal of the sensor of provision of a butterfly valve arrives on TSM through ESM; on cars with the CAN tire of TSM checks only the fact of receipt of a signal from the sensor, on models without CAN tire also the condition of an alarm wire is checked) |
| 00529 | Break of an electrical wiring or loss of a signal from the sensor of speed of the car, car speed sensor on transmission, turns of the engine or sensor of provision of a butterfly valve |
| 00532 | The low voltage of power supply of electromagnetic valves as a result of the category of the battery |
| 00545 | Break in an electrical wiring or short circuit on weight (communication between modules of engine management and transmission is broken) |
| 00596 | Short circuit in an electrical wiring of electromagnetic valves |
| 00638 | Break in an electrical wiring or short circuit on weight (communication between modules of engine management and transmission is broken) |
| 00641 | Excessively high temperature of ATF or damage of the sensor of temperature of ATF |
| 00652 | Functioning refusal electricians or hydraulics (coupling or valvate assembly) |
| 00660 | Break of an electrical wiring or the wrong connection of the sensor of provision of a butterfly valve (the sensor is damaged) |
| 65535 | TSM is faulty |