Toyota Yaris: Power Integration System / 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
PROCEDURE
(a) Clear the DTCs.
Body Electrical > Power Integration No.1 > Clear DTCs
|
NEXT |
| |
(a) Check for DTCs.
Body Electrical > Power Integration No.1 > Trouble Codes
| Result | Proceed to |
| B235204 is output | A |
| B235204 is not output | B |
| A |
| REPLACE SEMICONDUCTOR POWER INTEGRATION ECU |
| B |
| USE SIMULATION METHOD TO CHECK |
VEHICLE CONTROL HISTORY NOTICE: Make sure to record any output Vehicle Control History codes before clearing them and checking the Vehicle Control History again...
DESCRIPTION This DTC is output when the power distribution box assembly detects a Internal circuit error. DTC No. Detection Item DTC Detection Condition Trouble Area B235504 Power Distribution Box System Internal Failure
Microcomputer abnormality
AD circuit trouble
The load drive output open or short trouble
Power distribution box assembly 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...
Other information:
DESCRIPTION Refer to DTC C05001F. Click here
DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from C14E014 Left Front Wheel Speed Sensor Supply Voltage Circuit Short to Ground or Open With the +BS terminal voltage 9...
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...
Categories
Before refueling, close all the doors, windows, and the liftgate/trunk
lid, and switch the ignition OFF.
To open the fuel-filler lid, pull
the remote fuel-filler lid release.

To remove the fuel-filler cap, turn it counterclockwise.
Attach the removed cap to the
inner side of the fuel-filler lid.
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