DESCRIPTION
The combination meter assembly blinks or turns off the seat belt warning light on the combination meter assembly in accordance with the state of the front seat inner belt assembly (driver seat).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
*1: w/ Smart key System
Click here
HINT:
Click here
Click here
PROCEDURE
1. |
READ VALUE USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Data List.
(e) Read the Data List according to the display on the Techstream.
Body Electrical > Main Body > Data List
Tester Display |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|---|
D Seat Buckle SW |
Driver seat belt buckle switch |
ON or OFF |
ON: Driver seat belt unfastened OFF: Driver seat belt fastened |
- |
Tester Display |
---|
D Seat Buckle SW |
OK:
ON or OFF appears on the Techstream screen according to the driver seat belt condition.
OK | ![]() |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
|
2. |
INSPECT FRONT SEAT INNER BELT ASSEMBLY (DRIVER SEAT) |
(a) Remove the front seat inner belt assembly (driver seat).
Click here
(b) Inspect the front seat inner belt assembly (driver seat) (seat belt warning switch).
Click here
NG | ![]() |
REPLACE FRONT SEAT INNER BELT ASSEMBLY (DRIVER SEAT) |
|
3. |
INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
(a) Remove the main body ECU (multiplex network body ECU).
Click here
*a |
Component without harness connected (Instrument Panel Junction Block Assembly) |
- |
- |
(b) Disconnect the 3H instrument panel junction block assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
MB-18 (DBKL) - 3H-33 |
Always |
Below 1 Ω |
NG | ![]() |
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
|
4. |
CHECK HARNESS AND CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - FRONT SEAT INNER BELT ASSEMBLY (DRIVER SEAT) - BODY GROUND) |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
3H-33 - M73-3 (+) |
Always |
Below 1 Ω |
M73-3 (+) - Body ground |
Always |
10 kΩ or higher |
M73-2 (E) - Body ground |
Always |
Below 1 Ω |
OK | ![]() |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Toyota CH-R Service Manual > Navigation System: Parts Location
PARTS LOCATION
ILLUSTRATION
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MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)
*2
SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY)
*3
NO. 1 ENGINE ROOM RELAY BLOCK
- DCM/MAYDAY FUSE
*4
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Toyota CH-R Service Manual > Steering Gear: Reassembly
REASSEMBLY
PROCEDURE
1. INSTALL NO. 2 STEERING RACK BOOT
(a) Apply lithium soap base glycol grease to the inside of the small
opening of a new No. 2 steering rack boot.
(b) Install the No. 2 steering rack boot to the groove on the ra ...