Key Reminder Warning System Terminals Of Ecu
CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
Key Reminder Warning System -- Terminals Of Ecu |
| CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
Text in Illustration*A
| for LHD
| *B
| for RHD
|
Remove the main body ECU (multiplex network body ECU) (LandCruiser RM000003WBO05FX.html).
Measure the voltage and resistance 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
|
A-30 (BECU) - Body ground
| -
| Battery power supply
| Always
| 11 to 14 V
|
A-31 (ALTB) - Body ground
| -
| Battery power supply
| Always
| 11 to 14 V
|
A-32 (IG) - Body ground
| -
| Ignition switch power supply
| Ignition switch ON
| 11 to 14 V
|
A-32 (IG) - Body ground
| -
| Ignition switch power supply
| Ignition switch off
| Below 1 V
|
A-29 (ACC) - Body ground
| -
| ACC power supply
| Ignition switch ACC
| 11 to 14 V
|
A-29 (ACC) - Body ground
| -
| ACC power supply
| Ignition switch off
| Below 1 V
|
A-11 (GND1) - Body ground
| -
| Ground
| Always
| Below 1 Ω
|
G63-3 (GND2) - Body ground
| W-B - Body ground
| Ground
| Always
| Below 1 Ω
|
G64-17 (KSW) - Body ground
| G - W-B
| Unlock warning switch
| No key in ignition key cylinder
| 10 kΩ or higher
|
G64-17 (KSW) - Body ground
| G - W-B
| Unlock warning switch
| Key inserted in ignition key cylinder
| Below 1 Ω
|
If the result is not as specified, there may be a malfunction in the wire harness.
Install the main body ECU (multiplex network body ECU).
Measure the voltage according to the value(s) in the table below.
for LHDTerminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
2I-27 (FLCY) - Body ground
| R - Body ground
| Front door LH courtesy switch input
| Front door LH open
| Below 1 V
|
2I-27 (FLCY) - Body ground
| R - Body ground
| Front door LH courtesy switch input
| Front door LH closed
| 11 to 14 V
|
for RHDTerminal No. (Symbol)
| Wiring Color
| Terminal Description
| Condition
| Specified Condition
|
2H-26 (FRCY) - Body ground
| B - Body ground
| Front door RH courtesy switch input
| Front door RH open
| Below 1 V
|
2H-26 (FRCY) - Body ground
| B - Body ground
| Front door RH courtesy switch input
| Front door RH closed
| 11 to 14 V
|
If the result is not as specified, the main body ECU (multiplex network body ECU) or driver side junction block assembly may have a malfunction.
