Suzuki Ignis Service Manual page 3808

Table C – Communication between Suzuki Scan Tool and Immobilizer Control
Module is Not Established
Wiring Diagram
BLK/YEL
BB
1. To ECM 2. Immobilizer control module
Troubleshooting
NOTE:
Before troubleshooting, make sure if Suzuki Scan Tool is free from any malfunction and if correct PC
card is used. Also, make sure if Suzuki Scan Tool is properly connected to DLC.
Step
1 Check voltage between G19-4 and body
ground with ignition switch turned ON.
See Fig. 1.
Is it 10 – 14 V?
2 Check voltage between G19-3 and body
ground with ignition switch turned ON.
See Fig. 2.
Is it 10 – 14 V?
3 1) Disconnect coupler at Immobilizer
Control Module. See Fig. 3.
Is there continuity between coupler termi-
nal G19-1 and body ground?
1
G19
2
4 3 1
3. To #9-pin in DLC
Action
G19-4
BLK/RED
G19-3
BLK/WHT
BLK G19-1
4
4. Immobilizer Control Module connector (viewed from harness side)
Yes
Go to Step 2.
Go to Step 3.
Go to Step 4.
IMMOBILIZER CONTROL SYSTEM 8G-11
YEL 3
G19-2
2
• "BLK/RED" wire
open or short
• Fuse blown
• Main relay faulty
• "BLK/WHT" wire
open or short
• Fuse blown
"BLK" wire open
No