Suzuki 2006 SX4, Service Manual

Page: 1413 / 1478

Body Electrical Control System: 10B-14
BCM Power Circuit and Ground Circuit Check
S6RW0CA204007
Wiring Diagram
Troubleshooting
+B
IG1
+BB
GRN G273-2
BLK
BLK/ORN
G272-9
G271-3
BLK/ORN L314-4
BLU G273-5
WHT E324-2
2
3
1
E324 L314
1 2 4 5 3 6 7 8 9
10
11 12 13 14 15 16 17 18
1 2
1 2 4 5 3 6
1
2 4 5 3 6 7 8 9 10
7 8 9 10
11 12
11 12
13 14 15 16 17 18 19 20
G272 G271
1 2
4 6 5
G273
[A] [A] [A]
3
[A]
I6RW0CA20006-02
[A]: Junction block connector viewed from harness side 2. Ignition switch
1. Junction block 3. Battery
Step Action Yes No
1 Fuse check
1) Turn ignition switch to OFF position.
2) Check circuit fuses for condition.
Are circuit fuses in good condition?
Go to Step 2. Replace fuse and check
for short circuit to
ground.
2 Power supply circuit check
1) Disconnect connectors from junction block.
2) Check for proper connection to junction block connector
at terminal “E324-2”.
3) If OK, then measure voltage between “E324-2” terminal
of junction block connector and vehicle body ground.
Is voltage 10 – 14 V?
Go to Step 3. Repair power supply
circuit.
3 Power supply circuit check
1) Check for proper connection to junction block connector
at terminals “G273-2” and “G273-5”.
2) If OK, turn ignition switch to ON position.
3) Measure voltage between following terminals.
• Between “G273-2” terminal of junction block
connector and vehicle body ground
• Between “G273-5” terminal of junction block
connector and vehicle body ground
Is each voltage 10 – 14 V?
Go to Step 4. Repair power supply
circuit.