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

Toyota Yaris XP210 (2020-2026) 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

REPAIR OR REPLACE GENERATOR ASSEMBLY

2.	CHARGING CIRCUIT WITH LOAD

Click here

CHECK FOR INTERMITTENT PROBLEMS

REPAIR OR REPLACE GENERATOR ASSEMBLY

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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...

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