Dtc C1227: 4L/N Switch Circuit Open - Suzuki GRAND VITARA JB416 Service Manual

3C-35 Transfer: Motor-Shift Type (Transfer with Shift Actuator)

DTC C1227: 4L/N Switch Circuit Open

Wiring Diagram
[A]: 4WD control module connector "E91" (viewed from harness side)
1. 4WD control module
2. TCM
DTC Detecting Condition and Trouble Area
DTC detecting condition
Though transfer shift actuator motor position switch is "4L-lock"
position, the ON signal is not input from the 4L/N switch.
DTC Confirmation Procedure
1) Clear DTC using scan tool.
2) Select transfer switch to "4L-lock" position and keep its position for 1 min.
3) Check DTC.
Troubleshooting
Step
1 Was "4WD control system check" performed?
2 4L/N switch circuit check
1) Disconnect 4L/N switch connector with ignition switch
OFF.
2) Check for proper connection to terminal of 4L/N switch
connector.
3) If connection is OK, measure voltage between "PNK/
WHT" terminal of 4L/N switch connector and vehicle
body ground with ignition switch ON.
Is it 10 – 14 V?
1
12V
PNK/WHT
E91-13
E91-14 RED/GRN
[A]
11 10 9 8
12 7
26 25 23 22 21 20
24
Action
2
IG
3
4
3
6 5 4 2 1
19 16 15 13
18 17 14
I5JB0A332018-01
3. 4L/N switch
4. Center differential lock switch
• 4L/N switch
• 4L/N switch circuit
• 4WD control module
Yes
Go to Step 2.
Go to Step 3.
S5JB0E3314018
Trouble area
No
Go to "4WD Control
System Check: Motor-
Shift Type (Transfer with
Shift Actuator)".
Go to Step 4.