Toyota Yaris: Charging System / Generator "A" Mechanical Performance Mechanical Failure (P065C07)
DESCRIPTION
The alternator performs self-diagnosis of its internal circuits to detect malfunctions (open or short circuits).
The ECM receives the result via LIN communication and stores a DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Note |
|---|---|---|---|---|---|
| P065C07 | Generator "A" Mechanical Performance Mechanical Failure | All of the following conditions are met (1 trip detection logic):
|
| Comes on | SAE Code: P065C |
WIRING DIAGRAM
Refer to the wiring diagram for the P062049.
Click here
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
| 1. | CHECK FAN AND GENERATOR V BELT |
Click here
| NG |
 | REPAIR OR REPLACE FAN & GENERATOR V BELT |
|
| 2. | CHECK V-RIBBED BELT TENSIONER ASSEMBLY |
Click here
| NG |
 | REPAIR OR REPLACE V-RIBBED BELT TENSIONER ASSEMBLY |
|
| 3. | CHECK GENERATOR ASSEMBLY WIRING |
Click here
| NG |
 | REPAIR OR REPLACE GENERATOR ASSEMBLY WIRING |
|
| 4. | CHECK FOR ABNORMAL NOISE |
Click here
| NG |
 | REPAIR OR REPLACE GENERATOR ASSEMBLY |
|
| 5. | CHARGING CIRCUIT WITHOUT LOAD |
Click here
| NG |
 | REPAIR OR REPLACE GENERATOR ASSEMBLY |
|
| 6. | CHARGING CIRCUIT WITH LOAD |
Click here
| OK |
 | CHECK FOR INTERMITTENT PROBLEMS |
| NG |
 | REPAIR OR REPLACE GENERATOR ASSEMBLY |
Generator Control Circuit Internal Electronic Failure (P062049)
DESCRIPTION The alternator performs self-diagnosis of its internal circuits to detect malfunctions (open or short circuits). The ECM receives the result via LIN communication and stores a DTC...
Deterioration of Battery Low Capacity (P160200)
DESCRIPTION The auxiliary battery condition is calculated from the voltage when the engine is running (except when cranking) and then output to the ECM...
Other information:
Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Installation
INSTALLATION CAUTION / NOTICE / HINT NOTICE: After performing the update ECU security key procedure, make sure to perform the initialization procedure for when the cable has been disconnected and reconnected to the negative (-) auxiliary battery terminal...
Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Removal
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Liftgate/Trunk Lid
WARNING
Never allow a person to ride in the luggage compartment/trunk
Allowing a person to ride in the luggage compartment/trunk is dangerous. The person in the luggage compartment/trunk could be seriously injured or killed during sudden braking or a collision.
Do not drive with the liftgate/trunk lid open
