Diagnosis Procedure

1.CHECK CHASSIS CONTROL MODULE IGNITION POWER SUPPLY

Ignition switch OFF.
Disconnect the chassis control module harness connector.
Check the voltage between chassis control module harness connector and ground.
+ — Voltage
Chassis control module
Connector Terminal
B36 5 Ground Approx. 0 V
Ignition switch ON.
Check the voltage between chassis control module harness connector and ground.
+ — Voltage
Chassis control module
Connector Terminal
B36 5 Ground 6 − 16 V

+	—	Voltage
B36	5	Ground	Approx. 0 V

+	—	Voltage
B36	5	Ground	6 − 16 V

Is the inspection result normal?

2.CHECK CHASSIS CONTROL MODULE IGNITION POWER SUPPLY CIRCUIT

Ignition switch OFF.
Check the 10A fuse (#40).
Check continuity between chassis control module harness connector and the fuse block (J/B).
Chassis control module Fuse block (J/B) Continuity
Connector Terminal Connector Terminal
B36 5 B31 7P Existed

Chassis control module	Fuse block (J/B)	Continuity
B36	5	B31	7P	Existed

Is the inspection result normal?

Perform trouble diagnosis for ignition power supply.

Repair / replace harness, connector, or fuse.

3.CHECK CHASSIS CONTROL MODULE BATTERY POWER SUPPLY

Check voltage between chassis control module harness connector and ground.

4.CHECK CHASSIS CONTROL MODULE BATTERY POWER SUPPLY CIRCUIT

Check the 5A fuse (#11).
Check continuity between chassis control module harness connector and the fuse block (J/B).
Chassis control module Fuse block (J/B) Continuity
Connector Terminal Connector Terminal
B36 13 B32 8Q Existed

Chassis control module	Fuse block (J/B)	Continuity
B36	13	B32	8Q	Existed

Is the inspection result normal?

Perform the trouble diagnosis for 12V battery power supply circuit.

5.CHECK CHASSIS CONTROL MODULE GROUND CIRCUIT

Check the continuity between chassis control module harness connector and the ground.

Is the inspection result normal?

Repair / replace harness or connector.

6.CHECK TERMINAL

Check the chassis control module terminals for damage or loose connection with harness connector.

Is the inspection result normal?

INSPECTION END

Repair or replace error-detected parts.