DTC 41

DTC 41: ABS Solenoid Valve inside Hydraulic Unit (Open Circuit or Short Circuit)






CIRCUIT OPERATION
Power is continuously supplied to the ABS-ECU through fusible link number 3 to operate the solenoid valve and motor.

ABS DTC SET CONDITIONS
These codes are displayed if the power supply circuit of solenoid valve or motor is open or shorted.

TROUBLESHOOTING HINTS (The most likely causes for these DTCs are to set are:)
- Damaged wiring harness or connector
- Malfunction of the hydraulic unit (integrated with ABS-ECU)

DIAGNOSIS

Required Special Tools:
- MB991223: Harness Set
- MB991502: Scan Tool (MUT-II)
- MB991529: Diagnostic Trouble Code Check Harness





STEP 1. Check the solenoid valve or motor power supply circuit at ABS-ECU connector A-118.
1) Disconnect ABS-ECU connector A-118 and measure at the harness side.
2) Measure the voltage between terminal 1 and ground, and 19 and ground.
Q: Is the voltage approximately 12 volts (battery positive voltage)?
YES: Replace the hydraulic unit (integrated with ABS-ECU) and then go to Step 3.
NO: Go to Step 2.








STEP 2. Check the harness wires between fusible link number 3 and ABS-ECU connector B-118.
Q: Is any of the harness wires between fusible link number 3 and ABS-ECU connector B-118 damaged?
YES: Repair it and then go to Step 3
NO: Go to Step 3.

STEP 3. Check the diagnostic trouble codes.
Q: Do diagnostic trouble codes 41, 42, 43, 44, 52, 53 or 55 reset?
YES: Go to Step 1.
NO: This diagnosis is complete.