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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