DESCRIPTION
Detection Item |
Symptom |
Trouble Area |
---|---|---|
Restraints Occupant Classification System Module Communication Stop Mode |
Any of the following conditions are met:
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
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DTC check procedure: Turn the ignition switch to ON and wait at least approximately 8 seconds.
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HINT:
PROCEDURE
1. |
CHECK FOR OPEN IN CAN BUS LINES (OCCUPANT DETECTION ECU BRANCH LINE) |
(a) Disconnect the cable from the negative (-) battery terminal.
(b) Disconnect the occupant detection ECU connector. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
Y6-5 (CANH) - Y6-4 (CANL) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
NG | ![]() |
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (OCCUPANT DETECTION ECU) |
|
2. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(b) Reconnect the cable to the negative (-) battery terminal.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
Y6-6 (IG2) - Body ground |
Ignition switch ON |
11 to 14 V |
OK | ![]() |
REPLACE OCCUPANT DETECTION ECU |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
Toyota CH-R Service Manual > Airbag System: Occupant Classification System Malfunction (B1650/32,B165A/32)
DESCRIPTION
The airbag sensor assembly and occupant detection ECU communicate via CAN communication.
When the occupant detection ECU stores DTC B1771, B1780, B1782, B1795, B1798,
B1799, U0125 or U0129, the airbag sensor assembly receives this information and
stores DTC B1650/32.
When the occu ...
Toyota CH-R Service Manual > Lighting System: How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the lighting system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
2. ...