9-195
53_ABS
EAS20699
53_ABS
EAS33327
TROUBLESHOOTING
Item
Vehicle system power supply (voltage of ABS ECU power supply is low)
Procedure
1. Defective battery
• Recharge or replace the battery, and check again.
Refer to “CHECKING AND CHARGING THE BATTERY” on page 8-94.
2. Defective coupler between the battery and the hydraulic unit assembly
• Check the coupler for any pins that may be pulled out.
• Check the locking condition of the coupler.
Push the OFF/LOCK switch before disconnecting or connecting a coupler.
3. Wire harness continuity
• Disconnect the ABS ECU fuse and ABS ECU coupler.
• Open circuit check
• Short circuit check
Disconnect the ABS ECU related connectors before checking.
Refer to “PARTS CONNECTED TO THE ABS ECU” on page 9-4.
Ground short circuit check “A”
Is check result OK?
YES
Go to step 3.
NO
If there is a malfunction, repair it and connect the coupler securely.
Between ABS ECU fuse holder “1” and ABS
ECU coupler “2”
brown/white
Is resistance 0 ?
YES
Go to “Short circuit check”.
NO
Replace the wire harness.
Between ABS ECU coupler “2” and ground brown/white–ground
B
W/G
G/R
W/Y
WBBW
R/W
B/G
B/L
Lg/W
Lg/L
Br/W
LgLg
G/Y
R/L
1
2
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