Suzuki Wagon R Manual page 927

8G-12 IMMOBILIZER CONTROL SYSTEM
DTC B1000 IMMOBI CONT MODULE INTERNAL FAIL
DTC DETECTING CONDITION AND TROUBLE AREA
DTC DETECTING CONDITION
Immobilizer control module internal fail.
TROUBLE SHOOTING (DTC B1000)
STEP
1 1) Ignition switch at OFF position.
2) Disconnect connector from immobilizer control
module.
3) Check for proper connection to immobilizer
control module at all terminals.
Are they in good condition?
ACTION
TROUBLE AREA
Immobilizer control module
YES
Substitute a known-
good immobilizer
control module
according to
PROCEDURE FOR
IMMOBILIZER
CONTROL MODULE
REPLACEMENT and
recheck.
NO
Repair or replace.