SERVICE BRAKES Anti-lock Braking System Troubleshooting
When diagnostic trouble codes “41 SOL FRONT L”, “42 SOL FRONT
OR “43
SOL DRIFT” are displayed
[Explanation]
The ABS ECU normally monitors the solenoid valve
drive circuit.
If no current flows in the solenoid even if the ECU
turns the solenoid ON or if it continues to flow even
when
turned OFF, the ECU determines the solenoid
coil wire is broken/short circuited or the harness is
broken short circuited and then these diagnostic
trouble codes are output.
IGNITION
SWITCH
HU
tor
and check with the HU
side connector.
Connect HU
connec-
tor, disconnect ECU con-
nector and check.
Is the solenoid valve
value within the ranae
The harness wire for the
solenoid valve
circuit
1
Standard value:
Yes
Repair ABS harness.
Replace ABS ECU.
TSB Revision
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