Toyota Yaris: Charging System / Diagnostic Trouble Code Chart

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Power Source & Network / G16e-gts (battery / Charging) / Charging System / Diagnostic Trouble Code Chart


Charging System


Detection Item





Battery Monitor Module General Electrical Failure

Does not come on

SAE Code: P058A


Generator Control Circuit Internal Electronic Failure

Comes on

SAE Code: P0620


Generator "A" Mechanical Performance Mechanical Failure

Comes on

SAE Code: P065C


Deterioration of Battery Low Capacity

Does not come on

SAE Code: P1602


Lost Communication with Alternator Missing Message

Comes on

SAE Code: P161A


Lost Communication with Battery Monitor Module Missing Message

Does not come on

SAE Code: P162B

    Data List / Active Test

    DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under Normal Condition are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not...

    On-vehicle Inspection

    ON-VEHICLE INSPECTION PROCEDURE 1. CHECK AUXILIARY BATTERY CONDITION NOTICE: If the auxiliary battery is weak or if the engine is difficult to start, recharge the auxiliary battery and perform inspections again before returning the vehicle to the customer...

    Other information:

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Inspection

    INSPECTION CAUTION / NOTICE / HINT NOTICE: Do not apply positive (+) auxiliary battery voltage to any terminals, except terminal K7-2 (B) or L7-2 (B), to avoid damaging the pulse sensor inside the motor. Perform initialization of the power window system after removing, inspecting or replacing the power window regulator motor assembly...

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Pre-ignition Detected (P137800)

    DESCRIPTION If sudden early ignition (pre-ignition) occurs continuously in a short period of time, a DTC is stored. This pre-ignition is a phenomenon inherent in boosted engines. Atomized engine oil and detached deposits (carbon) cause ignition and promote knocking during low-speed, high-output operation...


    Break-In Period

    No special break-in is necessary, but a few precautions in the first 600 miles (1,000 km) may add to the performance, economy, and life of the vehicle.

    Do not race the engine. Do not maintain one constant speed, either slow or fast, for a long period of time. Do not drive constantly at full-throttle or high engine rpm for extended periods of time. Avoid unnecessary hard stops. Avoid full-throttle starts.

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