Toyota Yaris: Charging System / Generator Control Circuit Internal Electronic Failure (P062049)

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Power Source & Network / G16e-gts (battery / Charging) / Charging System / 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.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Note

P062049

Generator Control Circuit Internal Electronic Failure

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

  • Ignition switch ON.
  • Except during engine cranking.
  • Auxiliary battery voltage is 10.5 V or higher.
  • No malfunction in the LIN communication system.
  • Open or short in EXC circuit, or abnormal waveform for PH circuit.

Generator assembly

Comes on

SAE Code: P0620

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1.

CHARGING CIRCUIT WITHOUT LOAD

Click here

NG

REPAIR OR REPLACE GENERATOR ASSEMBLY

OK

2.

CHARGING CIRCUIT WITH LOAD

Click here

OK

CHECK FOR INTERMITTENT PROBLEMS

NG

REPAIR OR REPLACE GENERATOR ASSEMBLY

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