Toyota Yaris: Charging System / How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
*: Use the GTS.
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
|
| 2. | CUSTOMER PROBLEM ANALYSIS |
HINT:
- In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
- Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
-
The following 5 items are important points for problem analysis:
What
Vehicle model, system name
When
Date, time, occurrence frequency
Where
Road conditions
Under what conditions?
Running conditions, driving conditions, weather conditions
How did it happen?
Problem symptoms
|
| 3. | INSPECT AUXILIARY BATTERY VOLTAGE |
HINT:
If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.
(a) Measure the auxiliary battery voltage.
Standard Voltage:
11 to 14 V
|
| 4. | INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Check if CAN communication DTCs are output.
Click here
| Result | Proceed to |
|---|---|
| CAN communication DTCs are not output. | A |
| CAN communication DTCs are output. | B |
| B |
 | GO TO CAN COMMUNICATION SYSTEM |
|
| 5. | CHECK FOR DTC* |
HINT:
Refer to DTC Check / Clear.
Click here
| Result | Proceed to |
|---|---|
| DTCs are not output. | A |
| DTCs are output. | B |
| B |
 | GO TO DTC CHART |
|
| 6. | REFER TO PROBLEM SYMPTOMS TABLE |
HINT:
Refer to Problem Symptoms Table.
Click here
| Result | Proceed to |
|---|---|
| Malfunctioning parts are not confirmed. | A |
| Malfunctioning parts are confirmed. | B |
| B |
 | GO TO STEP 12 |
|
| 7. | OVERALL ANALYSIS AND TROUBLESHOOTING* |
HINT:
Refer to Data List / Active Test.
Click here
| Result | Proceed to |
|---|---|
| Malfunctioning parts are not confirmed. | A |
| Malfunctioning parts are confirmed. | B |
| B |
 | GO TO STEP 12 |
|
| 8. | CHECK ECM CIRCUIT |
HINT:
Refer to Terminals of ECM.
Click here
| NG |
 | GO TO STEP 12 |
|
| 9. | CHECK FOR INTERMITTENT PROBLEMS |
HINT:
Refer to Symptom Simulation.
Click here
|
| 10. | PERFORM PARTS INSPECTION |
|
| 11. | IDENTIFY PROBLEM |
|
| 12. | ADJUST AND/OR REPAIR MALFUNCTIONING PARTS, COMPONENT AND AREA |
|
| 13. | PERFORM CONFIRMATION TEST |
| NEXT |
 | END |
System Diagram
S..
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table...
Other information:
Toyota Yaris XP210 (2020-2023) Reapir and Service Manual: Terminals Of Ecu
TERMINALS OF ECU TERMINALS OF ECU *a Component without harness connected (Skid Control ECU [Brake Actuator Assembly]) - - Terminal No. (Symbol) Terminal Description 1 (GND2) Pump motor ground 2 - (Not used) 3 - (Not used) 4 - (Not used) 5 (STP2) Stop light switch assembly input 6 - (Not used) 7 - (Not used) 8 - (Not used) 9 - (Not used) 10 (CANL) CAN communication line L 11 - (Not used) 12 (IGR) ECU power supply input 13 (BM) Motor relay power supply 14 (SP1) Speed signal output for speedometer 15 (RR-) Rear wheel speed RH (-) signal input 16 (RR+) Rear wheel speed RH (+) power supply output 17 (FL-) Front wheel speed LH (-) signal input 18 (FL+) Front wheel speed LH (+) power supply output 19 - (Not used) 20 - (Not used) 21 - (Not used) 22 (CANH) CAN communication line H 23 - (Not used) 24 - (Not used) 25 (GND1) Skid control ECU (brake actuator assembly) ground 26 (STPO) Stop light switch assembly output 27 - (Not used) 28 (RL-) Rear wheel speed LH (-) signal input 29 (RL+) Rear wheel speed LH (+) power supply output 30 (FR-) Front wheel speed RH (-) signal input 31 (FR+) Front wheel speed RH (+) power supply output 32 - (Not used) 33 (CSW) VSC OFF switch (combination switch assembly) input 34 - (Not used) 35 (STP) Stop light switch assembly input 36 (CA2H) CAN communication line H 37 (CA2L) CAN communication line L 38 (+BS) Solenoid relay power supply TERMINAL INSPECTION (a) Disconnect the A108 connector and measure the voltage or resistance on the wire harness side...
Toyota Yaris XP210 (2020-2023) Reapir and Service Manual: Power Integration No.1 System Internal Failure (B235204)
DESCRIPTION This DTC is output when the semiconductor power integration ECU detects a Internal circuit error. DTC No. Detection Item DTC Detection Condition Trouble Area B235204 Power Integration No.1 System Internal Failure Microcomputer abnormality AD circuit trouble Semiconductor power integration ECU WIRING DIAGRAM Click here CAUTION / NOTICE / HINT NOTICE: When using the GTS with the ignition switch off to troubleshoot: Connect the GTS to the vehicle, and turn a courtesy switch on and off at 1...
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Turning the Engine Off
Stop the vehicle completely. Manual transaxle: Shift into neutral and set the parking brake.Automatic transaxle: Shift the selector lever to the P position and set the parking brake.
Press the push button start to turn off the engine. The ignition position is off.