Suzuki WagonR+ RB310 Service Manual page 2955

8G-20 IMMOBILIZER CONTROL SYSTEM
DTC P1610 SECRET KEY AND PASSWORD NOT REGISTERED
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITION
SKC and PWD are not registered in ECM.
TROUBLE SHOOTING (DTC P1610)
STEP
1 1) Register password and secret key by using
SUZUKI scan tool.
Refer to PROCEDURE AFTER ECM
REPLACEMENT.
2) Check DTC.
Is DTC P1610 still output?
DTC P1611 PASSWORD NOT MATCHED
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITION
Password registered in ECM is not correct.
TROUBLE SHOOTING (DTC P1610)
STEP
1 Register password and secret key by using
scan tool. Turn ignition switch to OFF position and
leave it for 5 seconds or more. Then turn ignition
switch to ON position.
Is DTC P1611 still output?
DTC P1612/P1613 NO SIGNAL FROM IMMOBILIZER
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITION
Signal from immobilizer control module is not received
correctly.
TROUBLE SHOOTING (DTC P1612/1613)
STEP
1 Is DTC B3040, B3042 or B3043 output at
immobilizer control module?
2 1) Ignition switch at OFF position and leave it for
5 seconds or more.
2) Pull out ignition key and reinsert it.
3) Turn ignition switch to run engine.
Does engine start?
ACTION
ACTION
ACTION
TROUBLE AREA
ECM
YES
Perform registration
procedure again and
recheck.
TROUBLE AREA
ECM
YES
Substitute a known-
good ECM according to
PROCEDURE FOR
ECM REPLACEMENT
and recheck.
TROUBLE AREA
W-line circuit
Immobilizer control module failure
YES
W-line fail.
Proceed to each DTC
FLOW TABLE according to
that DTC number.
Check B3042 or B3043 first
and then B3040 if two codes
are output at the same time.
Temporary error in reading.
Immobilizer control system
is in good condition.
NO
ECM is registered
correctly.
NO
ECM is in good
condition.
NO
Go to step 2.
Substitute a known-
good ECM
according to
PROCEDURE FOR
ECM
REPLACEMENT
and recheck.