| Shift Solenoid |
| S1 S1 |
P0973 - Shift Solenoid "A" Control Circuit Low P0974 - Shift Solenoid "A" Control Circuit High |
Conduction check in ON/OFF solenoid. |
Comparison of the signal of solenoid monitor and solenoid driver output |
Wrong output signal for more than 100 ms |
-- |
-- |
100ms 5 times |
2 DCY |
| Pressure Control Solenoid |
| SLT |
P0748 - Pressure Control Solenoid "A" Electrical |
Linear solenoid feedback current stuck check |
Comparison of target current and Feedback current |
Sum of difference of two current >15000 |
Input AD value Voltage Main Solenoid Switch |
< 1333mA > 10.5 V ON |
2 times |
2 DCY |
| SL5 |
P0778 - Pressure Control Solenoid "B" Electrical |
| SL1 SL2 |
P0798 - Pressure Control Solenoid "C" Electrical P2716 - Pressure Control Solenoid "D" Electrical |
| SL3 |
P2725 - Pressure Control Solenoid "E" Electrical |
| SL4 |
P2734 - Pressure Control Solenoid "F" Electrical |
| SLU |
P2759 - Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical |
| SLT |
P0963 - Pressure Control Solenoid "A" Control Circuit High |
Input AD value check in every Linear solenoid. |
Detection of wrong input AD value |
Feedback current > 1333mA (AD value > 1000) for more than 100 ms |
100ms 5 times |
| SL5 SL1 SL2 |
P0777 - Pressure Control Solenoid "B" Stuck On P0797 - Pressure Control Solenoid "C" Stuck On P2715 - Pressure Control Solenoid "D" Stuck On |
| SL3 |
P2724 - Pressure Control Solenoid "E" Stuck On |
| SL4 |
P2733 - Pressure Control Solenoid "F" Stuck On |
| SLU |
P2758 - Torque Converter Clutch Pressure Control Solenoid Control Circuit Stuck On |
| SLT |
P0962 - Pressure Control Solenoid "A" Control Circuit Low |
Feedback current < 23mA (AD value < 15) for more than 100 ms |
100ms 5 times |
| SL5 |
P0776 - Pressure Control Solenoid "B" Performance/Stuck Off |
| SL1 |
P0796 - Pressure Control Solenoid "C" Performance/Stuck Off |
| SL2 |
P2714 - Pressure Control Solenoid "D" Performance/Stuck Off |
| SL3 |
P2723 - Pressure Control Solenoid "E" Performance/Stuck Off |
| SL4 |
P2732 - Pressure Control Solenoid "F" Performance/Stuck Off |
| SLU |
P2757 - Torque Converter Clutch Pressure Control Solenoid Control Circuit Performance/Stuck Off |
| Speed sensor |
| Output speed sensor |
P19AB - Output Speed Sensor Intermittent/Circuit Low |
Electrical check |
Detection of wrong input AD value |
Voltage < 0.206 Volt (AD value < 45) for more than 100 ms |
Output sensor |
Not after failure decision for output sensor "no pulse check" |
100ms 5 times |
2 DCY |
| Output speed sensor |
P077D - Output Shaft Speed Sensor Circuit High |
Electrical check |
Detection of wrong input AD value |
Voltage > 2.727 Volt (AD value > 545) for more than 100 ms |
Output sensor |
Not after failure decision for output sensor "no pulse check" |
100ms 5 times |
| Output speed sensor |
P0721 - Output Shaft Speed Sensor Circuit Range/Performance |
No pulse check |
Comparison pulse of input revolution and output revolution |
No pulse of output sensor during 48 pulses of input sensor |
Engine speed No emergency mode Garage shifting Time after garage shifting Neutral control Time after Neutral control Shifting Time after shifting Range Inhibitor switch Input sensor S1, SLC1, SLC2, SLC3, SLC4, S LB1, SLT (Input rev. / defined current gear ratio) Output sensor |
> 400rpm None >= T_GarageFin None >= T_NConFin None >= T_ShiftFin D, S No fault Active No fault >= 300 rpm Not during failure detection or after failure decision for output sensor electrical failure. |
500ms |
| Input speed sensor |
P19AA - Input/Turbine Speed Sensor Intermittent/Circuit Low |
Electrical check |
Detection of wrong input AD value |
Voltage < 0.206 Volt (AD value < 45) for more than 100 ms |
Input sensor |
Not after failure decision for input sensor "no pulse check" |
100ms 5 times |
| Input speed sensor |
P07C0 - Input/Turbine Shaft Speed Sensor "A" Circuit High |
Electrical check |
Detection of wrong input AD value |
Voltage > 2.727 Volt (AD value < 545) for more than 100 ms |
Input sensor |
Not after failure decision for input sensor "no pulse check" |
100ms 5 times |
| Input speed sensor |
P0716 - Input/Turbine Shaft Speed Sensor "A" Circuit Range/Performance |
No pulse check |
Comparison pulse of input revolution and output revolution |
No pulse of input sensor during 10 pulses of output sensor |
Engine speed Output sensor Output speed Input sensor |
> 400rpm Active >= 300rpm Not during failure detection or after failure decision for input sensor electrical failure. |
500ms |
| Inhibitor switch AQ450-8F |
| Inhibitor switch |
P0706 - Transmission Range Sensor "A" Circuit Range/Performance |
A, B, C and PA signal check in every shift lever position. |
Detection of wrong combination of the A, B, C and PA signal |
Wrong combination for more than 350 ms |
-- |
-- |
350 ms |
2 DCY |
| Inhibitor switch |
P0709 - Transmission Range Sensor "A" Circuit Intermittent |
Detection of no signal of the A, B, C and PA signal |
All signals lost |
| Oil temperature sensor |
| Oil temperature sensor Stuck |
P0710 - Transmission Fluid Temperature Sensor "A" Circuit |
Electrical check |
Detection of wrong input AD value |
Measurementblock shows Value smaller than 30°C (86 °F) and doesn't change this value by 1°C (33.8 °F) |
oil temp. Engine speed Range |
-55 °C to 200°C (-67 °F to 392 °F) > 400rpm D, S, R |
15min |
2 DCY |
| Oil temperature sensor High Stuck |
P0710 - Transmission Fluid Temperature Sensor "A" Circuit |
Measurementblock shows Value > 120°C (248 °F) |
EG colant temp. was after EG colant temp. was |
>50°C for 10s <45°C for 10s |
10ms |
| Oil temperature sensor GND short |
P0712 - Transmission Fluid Temperature Sensor "A" Circuit Low |
Measurementblock shows Value of 200°C (392 °F) |
-- |
-- |
5s |
| Oil temperature sensor Battery short / open |
P0713 - Transmission Fluid Temperature Sensor "A" Circuit High |
Measurementblock shows Value of -55°C (-67 °F) |
-- |
-- |
10s |
| Microcontroller Hardware |
| Flash ROM |
P0700 - Transmission Control System (MIL Request) |
ROM area check |
Comparison of stored checksum value and calculated checksum |
Two checksum values are not the same. |
-- |
-- |
40 s |
2 DCY |
| EEPROM |
P0700 - Transmission Control System (MIL Request) |
ROM area check |
Comparison of writing data and reading data. |
Writing data is different from reading one. |
|
|
| Random Access Memory |
P0700 - Transmission Control System (MIL Request) |
RAM area check |
Comparison of writing data and reading data. |
Writing data is different from reading one. |
-- |
-- |
| Functional Safety |
| Safety function |
P2711 - Unexpected Mechanical Gear Disengagement |
To check solenoid state |
Check of solenoid state pattern and input torque |
to detect braking torque > 1948Nm |
-- |
-- |
700ms |
2 DCY |
| Wrong gear select detection (by New Gear) |
P0613 - TCM Processor |
To check target gear |
Detection of wrong target gear |
target gear < allowed lowest gear |
-- |
-- |
150ms |
| Wrong gear select detection (by Solenoid Gear) |
To check solenoid state |
Detection of wrong solenoid state pattern |
gear judged from solenoid pattern < allowed lowest gear |
-- |
-- |
150ms |
| Wrong gear select detection (by suddenly downshift) |
To check solenoid state |
Detection of suddenly downshift with solenoid state pattern |
gear change judged from solenoid pattern in 100ms < allowed lowest gear |
-- |
-- |
100ms |
| Wrong gear select detection (by Engine PRM) |
To check engine speed |
Detection of engine over revolution |
engine speed > over revolution value x 1.05 |
-- |
-- |
150ms |
| CPU core check |
Input Other Rationality check |
To detect a CPU processing error |
Abnormal CPU processing is detected by using a micro controller function |
Ignition |
ON |
1 Time |
| ROM check |
Input Other Rationality check |
To detect an error about the ROM |
ROM error is detected by using the micro controller functions and software function. |
Ignition |
ON |
1 Time |
| RAM data protection |
Input Other Rationality check |
To check detect about the RAM |
ROM error is detected by using the micro controller functions and software functions. |
Ignition |
ON |
1 Time |
| Communication data check |
Input Other Rationality check |
To detect the error by checking the communication between Central Processing Unit (CPU) and Peripheral Control Unit (PCU) |
Error is detected by checking the communication between CPU and PCU. |
Ignition |
ON |
1 Time |
| Program flow check |
Input Other Rationality for TCM program miscaclutation check |
To detect TCM program flow problem |
Comparison of processing address and pre-defined address. |
Ignition |
ON |
1 Time |
| Safe state shift check |
Input Other Rationality check |
To check the Solenoid cut monitor when Solenoid cut drive outputs "ON" signal |
Solenoid cut monitor = OFF |
Ignition |
ON -> OFF |
1 Time |
| CAN |
| Bus off |
U0001 - High Speed CAN Communication Bus |
CAN communication check |
Detection of communication error |
CAN BUS off condition for more than 250 ms |
ignition on |
> 500 ms |
250 ms |
2 DCY |
| ECU no communication (640h) (MQB CAN) |
U0100 - Lost Communication With ECM/PCM "A" |
CAN communication check |
Detection of communication error |
ECU no communication for more than 50 ms |
CAN bus ignition on |
Active > 500 ms |
500ms |
| ECU no communication (0A7h) (MQB CAN) |
U0100 - Lost Communication With ECM/PCM "A" |
CAN communication check |
Detection of communication error |
ECU no communication for more than 50 ms |
CAN bus ignition on |
Active > 500 ms |
500ms |
| ECU no communication (0A8h) (MQB CAN) |
U0100 - Lost Communication With ECM/PCM "A" |
CAN communication check |
Detection of communication error |
ECU no communication for more than 50 ms |
CAN bus ignition on |
Active > 500 ms |
500ms |
| ECU no communication (3BEh) (MQB CAN) |
U0100 - - Lost Communication With ECM/PCM "A" |
CAN communication check |
Detection of communication error |
ECU no communication for more than 50 ms |
CAN bus ignition on |
Active > 500 ms |
500ms |
| ECU no communication (121h) (MQB CAN) |
U0100 - Lost Communication With ECM/PCM "A" |
CAN communication check |
Detection of communication error |
ECU no communication for more than 50 ms |
CAN bus ignition on |
Active > 500 ms |
500ms |
| ECU no communication (641h) (MQB CAN) |
U0100 - Lost Communication With ECM/PCM "A" |
CAN communication check |
Detection of communication error |
ECU no communication for more than 50 ms |
CAN bus ignition on |
Active > 500 ms |
500ms |
| ECU no communication (391h) (MQB CAN) |
U0100 - Lost Communication With ECM/PCM "A" |
CAN communication check |
Detection of communication error |
ECU no communication for more than 50 ms |
CAN bus ignition on |
Active > 500 ms |
500ms |
| ECU malfunction (0A7h) (MQB CAN) |
U0401 - Invalid Data Received From ECM/PCM "A" |
CAN receive data check |
ECU signal data freeze |
Data counter not updated |
CAN bus ECU communication |
Active Active |
250ms |
| ECU malfunction (0A8h) (MQB CAN) |
U0401 - Invalid Data Received From ECM/PCM "A" |
CAN receive data check |
ECU signal data freeze |
Data counter not updated |
CAN bus ECU communication |
Active Active |
250ms |
| ECU malfunction (121h) (MQB CAN) |
U0401 - Invalid Data Received From ECM/PCM "A" |
CAN receive data check |
ECU signal data freeze |
Data counter not updated |
CAN bus ECU communication |
Active Active |
250ms |
| ECU malfunction (641h) (MQB CAN) |
U0401 - Invalid Data Received From ECM/PCM "A" |
CAN receive data check |
ECU signal data freeze |
Data counter not updated |
CAN bus ECU communication |
Active Active |
250ms |
| Accelerator pedal |
U0401 - Invalid Data Received From ECM/PCM "A" |
CAN receive data check |
Detection of error signal |
0xFF |
CAN bus ECU communication ECU data update |
Active Active Active |
250ms |
| ECU wrong level (MQB CAN) |
U0301 - Software Incompatibility With ECM/PCM |
CAN receive data check |
Detection of error signal |
Transmission coding is manual transmission code (0Fh) Or Q7: Max torque is not same as one in ATCU Touareg: MO_Code is not same as one in ATCU or MO_Leistung is not same as one in ATCU |
| Longitudinal G sensor malfunction check |
C0062 - Longitudinal Acceleration Sensor |
CAN receive data check |
Comparison of CAN ax signal to TCU calculated value |
To calculate signal difference of >11.3% |
CAN bus Brake communication |
Active Active |
11.5 km (7.1 miles) |
| Functional lock up control |
| Lock up control |
P0741 - Torque Converter Clutch Circuit Performance/Stuck Off |
OFF stuck check. |
Comparison of engine rpm and input rpm |
Engine rpm - input rpm > -100 rpm for 2s (hybrid only) Engine rpm - input rpm > 100 rpm for 2s |
Engine speed Shift Lever Time after above shift lever condition Estimated engine torque Revolution sensor SLU target current Time after above SLU target current condition Common parameter |
> 400 rpm < 4000 rpm D or S >= 8000ms >= 0 Nm No back up condition >= 1000mA >= Time_SLU_Full common condition |
2 s 6 times |
2 DCY |
| Gear ratio error |
| 1st gear 2nd gear 3rd gear 4th gear 5th gear 6th gear 7th gear 8th gear |
P0731 - Gear 1 Incorrect Ratio |
Input and output rpm signal check. Separate error memory for each gear. |
Comparison of indicated slip and actual slip with stored values |
1. abs(input rev. - output rev. x other gear ratio) < GErev1 for 500ms or 2. abs(input rev. - output rev. x expected gear ratio) > GErev2 for 1s |
Engine speed Output rev. Shift Lever Revolution sensor Common parameter |
> 400rpm > 60rpm D or S No back up condition common condition |
500ms or 1s 5 times cumulative |
2 DCY |
| P0732 - Gear 2 Incorrect Ratio |
| P0733 - Gear 3 Incorrect Ratio |
| P0734 - Gear 4 Incorrect Ratio |
| P0735 - Gear 5 Incorrect Ratio |
| P0729 - Gear 6 Incorrect Ratio |
| P076F - Gear 7 Incorrect Ratio |
| P07D9 - Gear 8 Incorrect Ratio |