DESCRIPTION
Based on changes in the power source voltage, the main body ECU (multiplex network body ECU) can detect if the battery has been disconnected and reconnected.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
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*1: w/ Smart Key System
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (POWER SUPPLY) |
(a) Disconnect the 3F instrument panel junction block assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
3F-1 - Body ground |
Always |
11 to 14 V |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
2. |
INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
(a) Remove the main body ECU (multiplex network body ECU).
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*a |
Component without harness connected (Instrument Panel Junction Block Assembly) |
- |
- |
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
3F-1 - MB-31 (BECU) |
Always |
Below 1 Ω |
OK |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
NG |
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
Toyota CH-R Service Manual > Lighting (ext): Automatic High Beam Main Switch
Components
COMPONENTS
ILLUSTRATION
*1
AUTO HIGH BEAM SWITCH
*2
INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY
Removal
REMOVAL
PROCEDURE
1. REMOVE INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY
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2. REMOVE AUTO HIGH BEAM ...
Toyota CH-R Service Manual > Pre-collision System: System Diagram
SYSTEM DIAGRAM
Communication Table
Sender
Receiver
Signal
Line
Millimeter Wave Radar Sensor Assembly
Skid Control ECU (Brake Actuator Assembly)
Brake assist standby signal
Pre-collision brake ope ...