Diagnosis Procedure
- CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) IGNITION POWER SUPPLY (1)
- Turn the ignition switch OFF.
- Disconnect ABS Actuator and Electric Unit (Control Unit) harness connector.
- Check the voltage between ABS Actuator and Electric Unit (Control Unit) harness connector and ground.
+
-
Voltage
ABS Actuator and Electric Unit (Control Unit)
Connector
Terminal
E41
34
Ground
Approx. 0 V
- Turn the ignition switch ONNOTE: Start the engine.
- Check the voltage between ABS Actuator and Electric Unit (Control Unit) harness connector and ground.
+
-
Voltage
ABS Actuator and Electric Unit (Control Unit)
Connector
Terminal
E41
34
Ground
10 - 16 V
Is the inspection result normal?
YES
GO TO 3.
NO
GO TO 2.
- CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) IGNITION POWER SUPPLY CIRCUIT
- Turn the ignition switch OFF.
- Check the 10 A fuse (No. 46).
- Disconnect IPDM E/R harness connector.
- Check the continuity between ABS Actuator and Electric Unit (Control Unit) harness connector and IPDM E/R harness connector.
ABS Actuator and Electric Unit (Control Unit)
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
E41
34
E5
12
Existed
- Check the continuity between ABS Actuator and Electric Unit (Control Unit) harness connector and ground.
ABS Actuator and Electric Unit (Control Unit)
--
Continuity
Connector
Terminal
E41
34
Ground
No existed
Is the inspection result normal?
YES
Perform trouble diagnosis for ignition power supply.
NO
Repair / replace harness, connector, or fuse.
- CHECK MOTOR AND MOTOR RELAY POWER SUPPLY
- Turn the ignition switch OFF.
- Check the voltage between ABS Actuator and Electric Unit (Control Unit) harness connector and ground.
+
-
Voltage
ABS Actuator and Electric Unit (Control Unit)
Connector
Terminal
E41
4
Ground
Battery voltage
Is the inspection result normal?
YES
GO TO 5.
NO
GO TO 4.
- CHECK MOTOR AND MOTOR RELAY POWER SUPPLY CIRCUIT
- Turn the ignition switch OFF.
- Check the 50 A fusible link (No. N).
- Check the continuity and short circuit between ABS Actuator and Electric Unit (Control Unit) harness connector terminal (4) and 50 A fusible link (No. N).
Is the inspection result normal?
YES
Perform trouble diagnosis for battery power supply.
NO
Repair / replace harness, connector, or fusible link.
- CHECK ACTUATOR RELAY, ABS IN VALVE, ABS OUT VALVE POWER SUPPLY
- Turn the ignition switch OFF.
- Check the voltage between ABS Actuator and Electric Unit (Control Unit) harness connector and ground.
+
-
Voltage
ABS Actuator and Electric Unit (Control Unit)
Connector
Terminal
E41
3
Ground
Battery voltage
Is the inspection result normal?
YES
GO TO 7.
NO
GO TO 6.
- CHECK ACTUATOR RELAY, ABS IN VALVE, ABS OUT VALVE POWER SUPPLY CIRCUIT
- Turn the ignition switch OFF.
- Check the 30 A fusible link (No. M).
- Check the continuity and short circuit between ABS Actuator and Electric Unit (Control Unit) harness connector terminal (3) and 30 A fusible link (No. M).
Is the inspection result normal?
YES
Perform trouble diagnosis for battery power supply.
NO
Repair / replace harness, connector, or fusible link.
- CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) GROUND CIRCUIT
Check the continuity between ABS Actuator and Electric Unit (Control Unit) harness connector and the ground.
ABS Actuator and Electric Unit (Control Unit)
--
Continuity
Connector
Terminal
E41
1
Ground
Existed
2
Is the inspection result normal?
YES
GO TO 8.
NO
Repair / replace harness, connector, or terminal.
- CHECK TERMINAL
- Check the ABS Actuator and Electric Unit (Control Unit) pin terminals for damage or loose connection with harness connector.
- Check the IPDM E/R pin terminals for damage or loose connection with harness connector.
Is the inspection result normal?
YES
Replace the ABS Actuator and Electric Unit (Control Unit). Refer to Removal and Installation .
NO
Repair / replace harness, connector, or terminal.