DESCRIPTION
Detection Item |
Symptom |
Trouble Area |
---|---|---|
Headlight ECU 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 20 seconds.
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HINT:
PROCEDURE
1. |
CHECK FOR OPEN IN CAN BUS LINES (HEADLIGHT ECU SUB-ASSEMBLY LH BRANCH LINE) |
(a) Disconnect the cable from the negative (-) battery terminal. |
|
(b) Disconnect the headlight ECU sub-assembly LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A16-24 (CANH) - A16-23 (CANL) |
Cable disconnected from negative (-) battery terminal |
54 to 69 Ω |
NG | ![]() |
REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (HEADLIGHT ECU SUB-ASSEMBLY LH) |
|
2. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
A16-12 (GND) - Body ground |
Always |
Below 1 Ω |
(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 |
---|---|---|
A16-4 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
A16-13 (ECUB) - Body ground |
Ignition switch ON |
11 to 14 V |
OK | ![]() |
REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
Toyota CH-R Service Manual > Airbag System: Short in Front Pretensioner Squib RH Circuit (B1900/73-B1903/73)
DESCRIPTION
The front pretensioner squib RH circuit consists of the airbag sensor assembly
and front seat outer belt assembly RH.
The airbag sensor assembly uses this circuit to deploy the pretensioner when
deployment conditions are met.
These DTCs are stored when a malfunction is detected in ...
Toyota CH-R Service Manual > Tire Pressure Warning System: Registration
REGISTRATION
PROCEDURE
1. BEFORE REGISTRATION
NOTICE:
The transmitter ID is written on the tire pressure warning valve and transmitter.
It is not possible to read the transmitter ID after installing the tire onto the
wheel. Therefore, make a note of the transmitter ID before installing the t ...