Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Generator "A" Mechanical Performance Mechanical Failure (P065C07)

Toyota Corolla Cross (2022-2025) Service Manual / Power Source & Network / M20a-fks (battery / Charging) / 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

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

Does not come on

Charge warning light:

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 AND GENERATOR V BELT

OK

2.

CHECK V-RIBBED BELT TENSIONER ASSEMBLY

Click here

NG

REPAIR OR REPLACE V-RIBBED BELT TENSIONER ASSEMBLY

OK

3.

CHECK GENERATOR ASSEMBLY WIRING

Click here

NG

REPAIR OR REPLACE GENERATOR ASSEMBLY WIRING
OK

4.

CHECK FOR ABNORMAL NOISE

Click here

NG

REPAIR OR REPLACE GENERATOR ASSEMBLY

OK

5.

INSPECT CHARGING CIRCUIT WITHOUT LOAD

Click here

NG

REPAIR OR REPLACE GENERATOR ASSEMBLY

OK

6.

INSPECT CHARGING CIRCUIT WITH LOAD

Click here

OK

CHECK FOR INTERMITTENT PROBLEMS

NG

REPAIR OR REPLACE GENERATOR ASSEMBLY

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