9-257
U0125
3. Wire harness continuity.
• Disconnect the ECU coupler “1”, IMU coupler “3” and ignition fuse 2 “4”.
• Remove the joint coupler cap “2”.
• Open circuit check
• Short circuit check
Disconnect the ECU and IMU related connectors before checking.
Refer to “PARTS CONNECTED TO THE ECU” on page 9-4.
Between ECU coupler “1” and joint coupler “2”
blue/white–blue/white
blue/black–blue/black
Between joint coupler “2” and IMU coupler “3”
blue/white–blue/white
blue/black–blue/black
Between IMU coupler “3” and ignition fuse 2
holder “4”
red/white–red/white
Between IMU coupler “3” and ground black/white–ground
Gy
LLVP
P/WLg/LO/WY/LL/B
B/LB/LBr/WGy/GG/LBr/LB/YL/W
W/YW/GG/WG/WLg/BL/WL/Y
R/WL/BL/WB/W
L/W
WW
L/W
BB
L/B L/B Y/B Y/B
L/R L/R L/RL/RB/L
B
B/L
BBBBB
Gy
LLVP
P/WLg/LY/LL/B
B/LB/LBr/WGy/GG/LB/YL/W
W/YW/GG/WG/WL/WL/Y
1
*
1
**
4
3
2
*. MTN890
**. MTN890D
Is resistance 0 Ω?
YES
→ Go to “Short circuit check”.
NO
a. Replace the wire harness.
b. Turn the main switch to “ON”, and then check the condition of the DTC using the malfunction
mode of the YDT.
Is it in the “Recovered” condition?
YES
→ Go to step 6, and complete the service.
NO
→ Go to “Short circuit check”.
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