Diagnosis Procedure
- CHECK AWD CONTROL UNIT POWER SUPPLY (1)
- Turn the ignition switch OFF.
- Disconnect AWD Control Unit harness connector.
- Check the voltage between AWD Control Unit harness connector and ground.
AWD Control Unit
--
Voltage (Approx.)
Connector
Terminal
B17
7
Ground
0 V
- Turn the ignition switch ON.CAUTION: Never start the engine.
- Check the voltage between AWD Control Unit harness connector and ground.
AWD Control Unit
--
Voltage
Connector
Terminal
B17
7
Ground
Battery voltage
Is the inspection result normal?
YES
GO TO 3.
NO
GO TO 2.
- CHECK AWD CONTROL UNIT POWER SUPPLY (2)
- Turn the ignition switch OFF.
- Check the 10 A fuse (No. 46).
- Disconnect IPDM E/R harness connector.
- Check the continuity between AWD Control Unit harness connector and IPDM E/R harness connector.
AWD Control Unit
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
B17
7
E5
12
Existed
- Check the continuity between AWD Control Unit harness connector and the ground.
AWD Control Unit
--
Continuity
Connector
Terminal
B17
7
Ground
Not existed
Is the inspection result normal?
YES
Perform the trouble diagnosis for ignition power supply circuit. Refer to Wiring Diagram - IGNITION POWER SUPPLY .
NO
Repair or replace error-detected parts.
- CHECK AWD CONTROL UNIT POWER SUPPLY (3)
- Turn the ignition switch OFF.
- Check the voltage between AWD Control Unit harness connector and ground.
AWD Control Unit
--
Voltage (Approx.)
Connector
Terminal
B17
15
Ground
Battery voltage
- Turn the ignition switch ON.CAUTION: Never start the engine.
- Check the voltage between AWD Control Unit harness connector and ground.
AWD Control Unit
--
Voltage
Connector
Terminal
B17
15
Ground
Battery voltage
Is the inspection result normal?
YES
GO TO 5.
NO
GO TO 4.
- CHECK AWD CONTROL UNIT POWER SUPPLY (4)
- Turn the ignition switch OFF.
- Check the 10 A fuse (No. 9).
- Disconnect fuse block (J/B) harness connector.
- Check the continuity between AWD Control Unit harness connector and fuse block (J/B).
AWD Control Unit
Fuse block (J/B)
Continuity
Connector
Terminal
Connector
Terminal
B17
15
M1
4A
Existed
- Check the continuity between AWD Control Unit harness connector and the ground.
AWD Control Unit
--
Continuity
Connector
Terminal
B17
15
Ground
Not existed
Is the inspection result normal?
YES
Perform the trouble diagnosis for power supply circuit. Refer to Wiring Diagram - BATTERY POWER SUPPLY .
NO
Repair or replace error-detected parts.
- CHECK AWD SOLENOID POWER SUPPLY (1)
- Turn the ignition switch OFF.
- Disconnect AWD solenoid harness connector.
- Check the voltage between AWD Control Unit harness connector and ground.
AWD Control Unit
--
Voltage
Connector
Terminal
B17
9
Ground
Battery voltage
- Turn the ignition switch ON.CAUTION: Never start the engine.
- Check the voltage between AWD Control Unit harness connector and ground.
AWD Control Unit
--
Voltage
Connector
Terminal
B17
9
Ground
Battery voltage
Is the inspection result normal?
YES
GO TO 7.
NO
GO TO 6.
- CHECK AWD SOLENOID POWER SUPPLY (2)
- Turn the ignition switch OFF.
- Check the 10 A fuse (No. 33).
- Check the harness for open or short between AWD Control Unit harness connector No. 9 terminal and fuse box.
Is the inspection result normal?
YES
Perform the trouble diagnosis for power supply circuit. Refer to Wiring Diagram - BATTERY POWER SUPPLY .
NO
Repair or replace error-detected parts.
- CHECK AWD CONTROL UNIT GROUND
- Turn the ignition switch OFF.
- Check the continuity between AWD Control Unit harness connector and ground.
AWD Control Unit
--
Continuity
Connector
Terminal
B17
10
Ground
Existed
11
Is the inspection result normal?
YES
INSPECTION END
NO
Repair or replace error-detected parts.