TERMINALS OF ECU
*A |
Main Body ECU (Multiplex Network Body ECU) with 1 Connector |
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- |
*A |
Main Body ECU (Multiplex Network Body ECU) with 2 Connectors |
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- |
CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
(a) Disconnect the instrument panel junction block assembly and main body ECU (multiplex network body ECU) connectors.
(b) Measure the voltage and resistance according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
3F-1 - Body ground |
W - Body ground |
Battery power supply |
Always |
11 to 14 V |
3K-1 - Body ground |
B-R - Body ground |
Battery power supply |
Always |
11 to 14 V |
3D-3 - Body ground |
W-B - Body ground |
Ground |
Always |
Below 1 Ω |
If the result is not as specified, there may be a malfunction in the wire harness.
(c) Reconnect the instrument panel junction block assembly and main body ECU (multiplex network body ECU) connectors.
(d) Measure the voltage and check for pulses according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
3A-30 - Body ground |
LG - Body ground*1 G - Body ground*2 |
ACC power supply |
Ignition switch ACC |
11 to 14 V |
Ignition switch off |
Below 1 V |
|||
3A-17 - Body ground |
GR - Body ground |
IG power supply |
Ignition switch ON |
11 to 14 V |
Ignition switch off |
Below 1 V |
|||
3D-24*3 - Body ground |
L - Body ground |
Door ambient illumination light RH power supply |
Always |
11 to 14 V |
3D-25*3 - Body ground |
G - Body ground |
Door ambient illumination light LH power supply |
Always |
11 to 14 V |
3D-26*3 - Body ground |
P - Body ground |
No. 1 cup holder illumination light power supply |
Always |
11 to 14 V |
3D-27*3 - Body ground |
R - Body ground |
No. 2 cup holder illumination light power supply |
Always |
11 to 14 V |
3H-19 - Body ground |
L - Body ground |
No. 1 luggage compartment light power supply |
DOME CUT relay on |
11 to 14 V |
DOME CUT relay off |
Below 1 V |
|||
3D-9 - Body ground |
W - Body ground |
Map light assembly, No. 1 room light and vanity lights power supply |
DOME CUT relay on |
11 to 14 V |
DOME CUT relay off |
Below 1 V |
|||
3D-29 - Body ground |
G - Body ground |
Interior lights drive output |
Interior lights off (when operated by illuminated entry system) |
11 to 14 V |
Interior lights on (when operated by illuminated entry system) |
Below 1 V |
|||
3H-24 - Body ground |
BR - Body ground |
Rear door courtesy light switch LH input |
Rear door LH open |
Below 1 V |
Rear door LH closed |
Pulse generation |
|||
3A-31 - Body ground |
BR - Body ground |
Rear door courtesy light switch RH input |
Rear door RH open |
Below 1 V |
Rear door RH closed |
Pulse generation |
|||
F15-6 (FLCY) - Body ground |
R - Body ground |
Front door courtesy light switch LH input |
Front door LH open |
Below 1 V |
Front door LH closed |
Pulse generation |
|||
F15-27 (FRCY) - Body ground |
BR - Body ground |
Front door courtesy light switch RH input |
Front door RH open |
Below 1 V |
Front door RH closed |
Pulse generation |
|||
3D-14*1 - Body ground |
LG - Body ground |
Rear door unlock detection switch input |
Rear door locked |
Pulse generation |
Rear door unlocked |
Below 1 V |
|||
3D-13 - Body ground |
B - Body ground |
Front door unlock detection switch LH input |
Front door LH locked |
Pulse generation |
Front door LH unlocked |
Below 1 V |
|||
3D-12 - Body ground |
GR - Body ground |
Front door unlock detection switch RH input |
Front door RH locked |
Pulse generation |
Front door RH unlocked |
Below 1 V |
|||
F15-25 (BCYL) - Body ground |
Y - Body ground |
No. 1 luggage compartment light drive output |
No. 1 luggage compartment light off |
11 to 14 V |
No. 1 luggage compartment light on |
Below 1 V |
|||
3H-34 - Body ground |
SB - Body ground |
Back door courtesy light switch input |
Back door open |
Below 1 V |
Back door closed |
11 to 14 V |
If the result is not as specified, the main body ECU (multiplex network body ECU) or instrument panel junction block assembly may be malfunctioning.
CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (w/ Smart Key System)
(a) Measure the voltage according to the value(s) in the table below.
Terminal No. (Symbol) |
Wiring Color |
Terminal Description |
Condition |
Specified Condition |
---|---|---|---|---|
F1-10 (SWIL) - F1-11 (AGND) |
LG - P |
Engine switch illumination drive output |
Engine switch illumination on |
11 to 14 V |
Engine switch illumination off |
Below 1 V |
Toyota CH-R Service Manual > Navigation System: USB Device Malfunction (B1585)
DESCRIPTION
This DTC is stored when a malfunction occurs in a connected device.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
B1585
USB Device Malfunction
USB Device Malfunction
Non mass- ...
Toyota CH-R Service Manual > Audio And Visual System(for Radio Receiver Type): Portable Player cannot be Registered
CAUTION / NOTICE / HINT
HINT:
Some versions of "Bluetooth" compatible audio players may not function properly,
or the functions may be limited using the radio receiver assembly, even if the portable
audio player itself can play files.
Click here
PROCEDURE
1.
...