DESCRIPTION
This circuit is from the skid control ECU (brake actuator assembly) to the radio and display receiver assembly.
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK ELECTRIC PARKING BRAKE SYSTEM |
(a) Check the operation of the electric parking brake.
| NG | |
GO TO ELECTRIC PARKING BRAKE SYSTEM |
|
|
2. |
CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) - RADIO AND DISPLAY RECEIVER ASSEMBLY) |
(a) Disconnect the F131 radio and display receiver assembly connector.
(b) Disconnect the A42 skid control ECU (brake actuator assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
F131-20 (PKB) - A42-33 (PKB) |
Always |
Below 1 Ω |
|
F131-20 (PKB) or A42-33 (PKB) - 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 |
Illumination Circuit
Speaker CircuitToyota CH-R Service Manual > Lin Communication System: No Response from ID BOX (B2789)
DESCRIPTION
This DTC is stored when LIN communication between the certification ECU (smart
key ECU assembly) and ID code box (immobiliser code ECU) stops for 10 seconds or
more.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
...
Toyota CH-R Service Manual > Can Communication System: Check Bus 1 Line for Short to GND
DESCRIPTION
There may be a short circuit between one of the CAN bus lines and GND when there
is no resistance between terminal 23 (CA1H) of the central gateway ECU (network
gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 8 (CA1L) of the central
gateway ECU (network gateway ECU) and ...