Diagnosis Procedure
- CHECK CAMERA SWITCH INPUT SIGNAL OF DISPLAY CONTROL UNIT
- Turn ignition switch ON.
- Check the voltage between display control unit harness connector and ground.
Terminals
Condition
Voltage
(Approx.)
(+)
(-)
Display control unit
Connector
Terminal
M100
26
Ground
Camera switch
ON
0 - 2.5 V
OFF
3.0 V
Is the inspection result normal?
YES
Replace display control unit. Refer to Removal and Installation .
NO
GO TO 2.
- CHECK CAMERA SWITCH INPUT SIGNAL OF INTEGRAL SWITCH
Check the voltage between integral switch harness connector and ground.
Terminals
Condition
Voltage
(Approx.)
(+)
(-)
Integral switch
Connector
Terminal
M1
19
Ground
Camera switch
ON
0 - 2.5 V
OFF
3.0 V
Is the inspection result normal?
YES
GO TO 3.
NO
GO TO 5.
- CHECK CAMERA SWITCH INPUT SIGNAL CIRCUIT OF DISPLAY CONTROL UNIT FOR OPEN
- Turn ignition switch OFF.
- Disconnect display control unit harness connector and integral switch harness connector.
- Check the continuity between display control unit harness connector and integral switch harness connector.
Display control unit
Integral switch
Continuity
Connector
Terminal
Connector
Terminal
M100
26
M1
19
Existed
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace malfunctioning parts.
- CHECK CAMERA SWITCH INPUT SIGNAL CIRCUIT OF DISPLAY CONTROL UNIT FOR SHORT
Check the continuity between display control unit harness connector and ground.
Display control unit
Ground
Continuity
Connector
Terminal
M100
26
Not existed
Is the inspection result normal?
YES
Replace integral switch. Refer to Removal and Installation .
NO
Repair or replace malfunctioning parts.
- CHECK CAMERA SWITCH INPUT SIGNAL CIRCUIT OF INTEGRAL SWITCH FOR OPEN
- Turn ignition switch OFF.
- Disconnect integral switch harness connector and multifunction switch harness connector.
- Check the continuity between integral switch harness connector and multifunction switch harness connector.
Integral switch
Multifunction switch
Continuity
Connector
Terminal
Connector
Terminal
M3
39
M55
10
Existed
Is the inspection result normal?
YES
GO TO 6.
NO
Repair or replace malfunctioning parts.
- CHECK CAMERA SWITCH INPUT SIGNAL CIRCUIT OF INTEGRAL SWITCH FOR SHORT
Check the continuity between integral switch harness connector and ground.
Integral switch
Ground
Continuity
Connector
Terminal
M3
39
Not existed
Is the inspection result normal?
YES
GO TO 7.
NO
Repair or replace malfunctioning parts.
- CHECK MULTIFUNCTION SWITCH
Check multifunction switch. Refer to Component Inspection .
Is the inspection result normal?
YES
INSPECTION END
NO
Replace multifunction switch. Refer to Removal and Installation .