
BODY –
General / Keyless Entry System
42-2
GENERAL
OUTLINE OF CHANGE
D
The descriptions of the troubleshooting using on MUT-
II
tester have been incorporated.
KEYLESS ENTRY SYSTEM
SPECIAL TOOL
Tool
Number
Name
Use
MB991502
MUT-
II
sub assembly
Recording secret codes
TROUBLESHOOTING
INSPECTION CHART FOR TROUBLE SYMPTOMS
Trouble symptom
Inspection procedure No.
Reference page
None of the doors can be locked or unlocked using the transmitter.
1
42-2
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.)
2
42-4
Secret codes cannot be registered.
3
42-4
INSPECTION PROCEDURE FOR TROUBLE SYMPTOMS
INSPECTION PROCEDURE 1
None of the doors can be locked or unlocked using the
transmitter.
Probable cause
The cause may be a malfunction of the transmitter, a malfunction of the receiver
or the lock and unlock signals are not being input to the ETACS-ECU.
D
Malfunction of transmitter
D
Malfunction of receiver
D
Malfunction of ETACS-ECU
D
Malfunction of wiring harness or connector
D
Malfunction of key reminder switch
D
Malfunction of door switch
NG
To next page
OK
Replace the transmitter battery. (Refer to P.42-7.)
Yes
Has the secret code been registered properly? *
NG
Re-register the secret code. (Refer to P.42-8.)
Can the doors be locked and unlocked by the driver’s-side door
key cylinder and lock knob?
No
Check the centre door lock system.
NOTE
*: This should be done if a transmitter or receiver has been replaced, and if a secret code has not
been registered properly.