| Detection condition |
- Any one of the following conditions is met:
- The TCM detects a communication error with AT pressure sensor No. 1.
- The TCM detects a communication error with AT pressure sensor No. 3.
- The TCM detects a communication error with AT pressure sensor No. 4.
- The TCM detects a communication error with AT pressure sensor No. 5.
- The TCM detects a communication error with AT pressure sensor No. 6.
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| Fail-safe |
- Inhibits learning control.
- Inhibits AAS.
|
| Possible cause |
- DTC is stored in the TCM. (Sensor power supply No. 1 low or high voltage malfunction) (See P0642-00: ). (See P0643-00: [TCM (NJ8A (X)- EC/NN8A (X)-EC/MM8A (X)-EC)] .)
- Malfunction in the following control valve body component parts (Refer to [CONTROL VALVE BODY REMOVAL/INSTALLATION
] in service information).
- AT pressure sensor No. 1 circuit (including connector/terminal) (open or short circuit)
- AT pressure sensor No. 3 circuit (including connector/terminal) (open or short circuit)
- AT pressure sensor No. 4 circuit (including connector/terminal) (open or short circuit)
- AT pressure sensor No. 5 circuit (including connector/terminal) (open or short circuit)
- AT pressure sensor No. 6 circuit (including connector/terminal) (open or short circuit)
- AT pressure sensor power supply circuit (including connector/terminal) (open circuit)
- TCM
|
| Repeatability verification procedure |
- Clear the DTC recorded in the memory. (See CLEARING DTC
.)
- Perform the following procedure to ensure that the DTC has been resolved:
- Switch the ignition ON (engine off or on).
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| System wiring diagram |
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