Toyota Yaris: 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.
| mostbet app 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 |
DESCRIPTION The battery state sensor assembly detects the voltage, current and temperature of the auxiliary battery. The charging condition is calculated from the voltage and current and output to the ECM...
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...
Other information:
COMPONENTS ILLUSTRATION
*1 FUEL TUBE SUB-ASSEMBLY *2 HEATER WATER HOSE INLET *3 HEATER WATER HOSE OUTLET *4 NO. 2 AIR HOSE *5 NO. 5 AIR HOSE *6 NO. 6 WATER BY-PASS HOSE *7 NO. 5 WATER BY-PASS HOSE *8 NO. 3 VACUUM TRANSMITTING HOSE *9 UNION TO CONNECTOR TUBE HOSE *10 NO...
DESCRIPTION If the air conditioning system cannot be operated using the air conditioning control assembly, the following factors may be the cause. Symptom Factor Air conditioning system cannot be operated using air conditioning control assembly
(With the exception of the switch indicators, no inputs are reflected when other switches operated)
LIN communication malfunction between air conditioning amplifier assembly and air conditioning control assembly
Short to +B or ground in air conditioning amplifier assembly circuit
Air conditioning amplifier assembly malfunction
Air conditioning control assembly malfunction
Harness or connector
WIRING DIAGRAM
CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure...
Categories

Smart key
Auxiliary key
Key code number plate
To use the auxiliary key, press the knob and pull out the auxiliary key
from the smart key.

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