
BODY –
Keyless Entry System
42-4
INSPECTION PROCEDURE 2
All of the doors can be locked and unlocked using the
transmitter, but the room lamp does not flash or
illuminate. (However, the room lamp operates normally
when the doors are opened and closed.)
Probable cause
If the room lamp operates normally when the doors are opened and closed, the cause
of the problem may be a malfunction of the receiver or a malfunction of the harness
between the room lamp the receiver.
D
Malfunction of receiver
D
Malfunction of connector or wiring harness
NG
Repair
NG
Check the harness wire between room lamp and receiver, and
repair if necessary.
OK
Replace the receiver.
OK
Check trouble symptoms.
Measure at the receiver connector D-01.
D
Disconnect the connector, and measure at the harness side.
D
Voltage between 11 and body earth
OK: System voltage
NG
Check the following connectors:
B-80, D-01
INSPECTION PROCEDURE 3
Secret codes cannot be registered.
Probable cause
The cause may be a malfunction of the diagnosis connector, a malfunction of the
power supply or earth circuit of the receiver, a malfunction of the earth circuit or
a malfunction of the diagnosis output circuit.
D
Malfunction of receiver
D
Malfunction of MUT-
II
D
Malfunction of connector or wiring harness
NG
Repair
NG
Check the harness wire, and repair if necessary.
D
Between receiver and diagnosis connector
NG
Repair
NG
Check the harness wire, and repair if necessary.
D
Between fusible link No.1 and diagnosis connector
OK
Check trouble symptoms.
NG
Check the harness wire, and repair if necessary.
D
Between diagnosis connector and earth
Yes
To next page
NG
Check the following
connectors:
B-22, B-50
NG
Repair
OK
Measure at the diagnosis
connector B-22.
D
Continuity between 4
and body earth
D
Continuity between 5
and body earth
OK: Continuity
OK
Replace MUT-
II
.
OK
Check trouble symptoms.
No
Measure at the diagnosis
connector B-22
D
Voltage between 16
and body earth
OK: System voltage
NG
Check the following connectors:
B-22, B-49, B-75
OK
Can the MUT-
II
communicate with other systems?
OK
Check trouble symptoms.
Measure at the diagnosis connector B-22 and the receiver connector
D-01.
D
Disconnect the connector, and measure at harness side.
D
Continuity between following terminals:
OK: Continuity
7 <Receiver side> – 1 <Diagnosis connector side>
NG
Check the following connectors:
B-22, D-01