Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000255XU
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 -           ]
Title: G16E-GTS (BATTERY / CHARGING): CHARGING SYSTEM: P065C07; Generator "A" Mechanical Performance Mechanical Failure; 2023 - 2025 MY GR Corolla [09/2022 -        ]

DTC

P065C07

Generator "A" Mechanical Performance Mechanical Failure

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

Warning Indicate

Note

P065C07

Generator "A" Mechanical Performance Mechanical Failure

All of the following conditions are met (1 trip detection logic):

  • Engine running (except during engine cranking).
  • No malfunction in the LIN communication system.
  • Alternator speed is less than 560 rpm.
  • EXC circuit is ON.
  • Fan and generator V belt
  • V-Ribbed belt tensioner assembly
  • Generator assembly wiring
  • Generator assembly

Charge warning is displayed

SAE Code: P065C

WIRING DIAGRAM

Refer to DTC P062049.

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (BATTERY / CHARGING): CHARGING SYSTEM: P062049; Generator Control Circuit Internal Electronic Failure+

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 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE MECHANICAL): DRIVE BELT: ON-VEHICLE INSPECTION

NG

REPAIR OR REPLACE FAN AND GENERATOR V BELT

OK

2.

CHECK V-RIBBED BELT TENSIONER ASSEMBLY

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE MECHANICAL): ENGINE: ON-VEHICLE INSPECTION+

NG

REPAIR OR REPLACE V-RIBBED BELT TENSIONER ASSEMBLY

OK

3.

CHECK GENERATOR ASSEMBLY WIRING

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (BATTERY / CHARGING): CHARGING SYSTEM: ON-VEHICLE INSPECTION+

NG

REPAIR OR REPLACE GENERATOR ASSEMBLY WIRING

OK

4.

CHECK FOR ABNORMAL NOISE

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (BATTERY / CHARGING): CHARGING SYSTEM: ON-VEHICLE INSPECTION+

NG

REPAIR OR REPLACE GENERATOR ASSEMBLY 2023 MY GR Corolla [09/2022 - 11/2022]; G16E-GTS (BATTERY / CHARGING): GENERATOR: REMOVAL 2023 - 2025 MY GR Corolla [11/2022 -        ]; G16E-GTS (BATTERY / CHARGING): GENERATOR: REMOVAL

OK

5.

CHARGING CIRCUIT WITHOUT LOAD

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (BATTERY / CHARGING): CHARGING SYSTEM: ON-VEHICLE INSPECTION+

NG

REPAIR OR REPLACE GENERATOR ASSEMBLY 2023 MY GR Corolla [09/2022 - 11/2022]; G16E-GTS (BATTERY / CHARGING): GENERATOR: REMOVAL 2023 - 2025 MY GR Corolla [11/2022 -        ]; G16E-GTS (BATTERY / CHARGING): GENERATOR: REMOVAL

OK

6.

CHARGING CIRCUIT WITH LOAD

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (BATTERY / CHARGING): CHARGING SYSTEM: ON-VEHICLE INSPECTION+

OK

CHECK FOR INTERMITTENT PROBLEMS

NG

REPAIR OR REPLACE GENERATOR ASSEMBLY 2023 MY GR Corolla [09/2022 - 11/2022]; G16E-GTS (BATTERY / CHARGING): GENERATOR: REMOVAL 2023 - 2025 MY GR Corolla [11/2022 -        ]; G16E-GTS (BATTERY / CHARGING): GENERATOR: REMOVAL