TERMINALS OF ECU
CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (w/ Retract Mirror)
(a) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.
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(b) Reconnect the instrument panel junction block assembly connectors.
(c) Measure the resistance and voltage according to the value(s) in the table below.
HINT:
Measure the values on the wire harness side with the connector disconnected.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
MB-11 (GND1) - Body ground |
- |
Ground |
Always |
Below 1 Ω |
MB-31 (BECU) - Body ground |
- |
Battery power supply |
Always |
11 to 14 V |
MB-30 (ACC) - Body ground |
- |
Ignition power supply (ACC signal) |
Ignition switch ACC |
11 to 14 V |
MB-30 (ACC) - Body ground |
- |
Ignition power supply (ACC signal) |
Ignition switch off |
Below 1 V |
MB-32 (IG) - Body ground |
- |
Ignition power supply (IG signal) |
Ignition switch ON |
11 to 14 V |
MB-32 (IG) - Body ground |
- |
Ignition power supply (IG signal) |
Ignition switch off |
Below 1 V |
(d) Install the main body ECU (multiplex network body ECU) to instrument panel junction block assembly.
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(e) Measure the voltage according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F16-14 (RET) - Body ground |
B - Body ground |
Power retract mirror motor drive voltage |
Mirror retract switch on outer mirror switch assembly retracted position. |
Below 1 V |
Mirror retract switch on outer mirror switch assembly driving position. |
11 to 14 V |
|||
F16-15 (RTR) - Body ground |
P - Body ground |
Power retract mirror motor drive voltage |
Mirror retract switch on outer mirror switch assembly auto retracted position. |
Below 1 V |
Mirror retract switch on outer mirror switch assembly driving position. |
11 to 14 V |
|||
F16-19 (RETR) - Body ground |
L - Body ground |
Power retract mirror motor drive voltage |
Outer rear view mirror assembly moves to the retracted position. |
Below 1 V |
Outer rear view mirror assembly not move. |
11 to 14 V |
|||
F16-20 (RTRR) - Body ground |
R - Body ground |
Power retract mirror motor drive voltage |
Outer rear view mirror assembly moves to the driving position. |
Below 1 V |
Outer rear view mirror assembly not move. |
11 to 14 V |
CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY
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CHECK AIR CONDITIONING CONTROL ASSEMBLY
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Toyota CH-R Service Manual > Automatic High Beam System: Precaution
PRECAUTION
IGNITION SWITCH EXPRESSIONS
(a) The type of ignition switch used on this model differs depending on the specifications
of the vehicle. The expressions listed in the table below are used in this section.
Expression
Ignition Switch (Position)
Engine Swi ...
Toyota CH-R Service Manual > Navigation System: Data Signal Circuit between Radio Receiver and Stereo Jack Adapter
DESCRIPTION
The No. 1 stereo jack adapter assembly sends the sound data signal or image data
signal from a USB device to the radio and display receiver assembly via this circuit.
WIRING DIAGRAM
PROCEDURE
1.
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMB ...