ABS (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC 41 ABS CONTROL MODULE MALFUNCTION

ABS (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC 41 ABS CONTROL MODULE MALFUNCTION

DTC DETECTING CONDITION:

Defective ABSCM&H/U

TROUBLE SYMPTOM:

• ABS does not operate.

• EBD does not operate.

NOTE:

Brake warning light comes on as well as the ABS warning light.

WIRING DIAGRAM:

STEP	CHECK	YES	NO
1.CHECK THE ABSCM&H/U GROUND CIRCUIT. 1) Turn the ignition switch to OFF. 2) Disconnect the ABSCM&H/U connectors. 3) Measure the resistance between the ABSCM&H/U and chassis ground. Connector & terminal LHD model (B301) No. 15 — Chassis ground: RHD model (F49) No. 15 — Chassis ground:	Is the resistance less than 0.5 Ω?		Repair the ABSCM&H/U ground harness.
2.CHECK POOR CONTACT IN CONNECTOR.	Is there poor contact of the connector between the battery, ignition switch and ABSCM&H/U?	Repair the connector.
3.CHECK CAUSE OF SIGNAL NOISE.	Is the car telephone or the radio properly installed?		Install the car phone or radio properly.
4.CHECK CAUSE OF SIGNAL NOISE.	Is there a noise source (such as an antenna) installed near the sensor harness?	Install the noise source apart from the sensor harness.
5.CHECK ABSCM&H/U. 1) Connect all connectors. 2) Erase the memory. 3) Perform the Inspection Mode. 4) Read the DTC.	Is the same DTC displayed?	Replace the ABSCM only.
6.CHECK ANY OTHER DTC ON DISPLAY.	Is there any other DTC displayed?	Check DTC using “List of Diagnostic Trouble Code (DTC)”.	Temporary poor contact occurs.