DESCRIPTION
This circuit includes the navigation ECU and radio and display receiver assembly.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - NAVIGATION ECU) |
(a) Disconnect the F130 radio and display receiver assembly connector.
(b) Disconnect the F135 navigation ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F130-28 (REV2) - F135-19 (REV2) |
Always |
Below 1 Ω |
|
F130-28 (REV2) or F135-19 (REV2) - Body ground |
Always |
10 kΩ or higher |
| OK | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Reverse Signal Circuit
Start Up Signal Circuit between Radio Receiver Assembly and Navigation ECUToyota CH-R Service Manual > Pre-collision System: Brake System Malfunction (C1A50)
DESCRIPTION
When the pre-collision system is operating, the millimeter wave radar sensor
assembly sends brake control signals to the skid control ECU (brake actuator assembly).
When the millimeter wave radar sensor assembly receives a VSC system malfunction
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Toyota CH-R Service Manual > Occupant Classification System: Trouble in Passenger Airbag ON/OFF Indicator
DESCRIPTION
The occupant classification system detects the front passenger seat condition.
It then displays the instrument panel passenger airbag assembly and front seat cushion
airbag assembly RH condition (activated/not activated) using the passenger airbag
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HINT:
Approxi ...