Suzuki 2006 SX4, Service Manual

Page: 462 / 1478

3B-24 Differential:
DTC C1254: 2WD/4WD Switch Malfunction
S6RW0C3204020
Wiring Diagram
4 Coupling assembly check
1) Check coupling assembly referring to “Coupling
Assembly Inspection”.
Is it in good condition?
Substitute a known-
good 4WD control
module and recheck. Replace coupling
assembly.
5 Coupling assembly circuit check
1) Disconnect connector from 4WD control module
connector “G26” with ignition switch turned OFF.
2) Check for proper connection to “G26-2” and “G26-3”
terminals of 4WD control module connector.
3) If connection is OK, measure resistance between “G26-
2” terminal of 4WD control module connector and
vehicle body ground.
Is resistance above 1 M
Ω
?
“YEL” wire is shorted to
ground circuit. Substitute a known-
good 4WD control
module and recheck.
6 Coupling assembly circuit check
1) Disconnect connector from 4WD control module
connector “G26” with ignition switch turned OFF.
2) Check for proper connection to “G26-3” terminal of 4WD
control module connector.
3) If connection is OK, measure resistance between “G26-
3” terminal of 4WD control module connector and “L102-
1” terminal of coupling assembly connector.
Is resistance above 1 M
Ω
?
Substitute a known-
good 4WD control
module and recheck. “GRY” wire is shorted to
ground circuit.
Step Action Yes No
G26-13
G26-14 GRY/YEL
RED/WHT
12V
1
3
4
L174-1
L174-5
2
L174-4 BLK/ORN
1 2 3 4 5 6 7 8 9 10 11 12
13 14 15 16 17 18 19 20 21 22 23 24 25 26
[A]
2
6
4 5 3
1
[B]
I7RW01320008-01
[A]: 4WD control module connector “G26” (viewed from harness side) 2. 2WD/4WD switch
[B]: 2WD/4WD switch connect “L174” (viewed from harness side) 3. “4WD” switch
1. 4WD control module 4. “4WD-lock” switch