Inspection of TCM and Its Circuits
Precautions: Precautions for Diagnosing Trouble · Precautions for Disassembly and Reassembly · Precautions for Transmission / Transaxle · General safety (00)
Voltage Check
NOTE:
•As each terminal voltage is affected by battery voltage, check that it is 11 V or more when ignition is “ON”.
•Voltage with asterisk(*) cannot be measured by voltmeter because it is pulse signal. Check it with oscilloscope if necessary.
•Voltage with asterisk(*) cannot be measured by voltmeter because it is pulse signal. Check it with oscilloscope if necessary.
| [A]: | TCM connector (View: [a]) |
“C06” connector
| Terminal No. | Wire color | Circuit | Normal voltage | Condition |
|---|---|---|---|---|
| C06-1* | RED | CAN communication line (High) | Refer to reference waveform. CAN communication signal |
|
| C06-2 | — | — | — | — |
| C06-3* | WHT | CAN communication line (Low) | Refer to reference waveform. CAN communication signal |
|
| C06-4 | GRN | Transmission range sensor (P or N range) | Approx. 0 V | Ignition: “ON” Select lever: P or N range |
| 6 to 10 V | Ignition: “ON” Select lever: R, D or M range |
|||
| C06-5 | BRN | Paddle-down switch | Approx. 0 V | Ignition: “ON” Paddle-down switch: Pulled |
| 10 to 14 V | Ignition: “ON” Paddle-down switch: Released |
|||
| C06-6 | LT BLU | Paddle-up switch | Approx. 0 V | Ignition: “ON” Paddle-up switch: Pulled |
| 10 to 14 V | Ignition: “ON” Paddle-up switch: Released |
|||
| C06-7 | — | — | — | — |
| C06-8 | BEG | Main power supply | 10 to 14 V | Constantly |
| C06-9 | — | — | — | — |
| C06-10 | — | — | — | — |
| C06-11 | — | — | — | — |
| C06-12 | PPL | Back up light relay | Approx. 0 V | Ignition: “ON” Select lever: R range |
| 10 to 14 V | Ignition: “ON” Select lever: Other than R range |
|||
| C06-13 | — | — | — | — |
| C06-14 | BLU | Ignition power supply | 10 to 14 V | Ignition: “ON” |
| Approx. 0 V | Ignition: “OFF” | |||
| C06-15 | — | — | — | — |
| C06-16 | BLK | Ground | Below 0.3 V | Constantly |
Reference Waveform
NOTE:
•Display includes the following types of data.
•Waveform varies depending on measurement condition and vehicle spec.
| [A]: | Waveform of channel 1 | [C]: | VOLT/DIV of each channel |
| [B]: | Ground level of each channel | [D]: | TIME/DIV |
CAN communication signal
CAN communication signal (Low) (1):
| Channel | Probe | Terminal No. |
|---|---|---|
| 1 | + | C06-3 |
| – | C06-16 |
CAN communication signal (High) (2):
| Channel | Probe | Terminal No. |
|---|---|---|
| 1 | + | C06-1 |
| – | C06-16 |
Measurement condition
•Engine: Stop
•Ignition: “ON”
•Ignition: “ON”
