Suzuki Grand Vitara JB416 / JB420. Manual — part 177
3C-22 Transfer: Motor-Shift Type (Transfer with Shift Actuator)
Fail-Safe Table
S5JB0A3314010
This function is provided by the safe mechanism that assures safe drive ability even when the actuator, switch, sensor
or its circuit fails. The following table shows the fail safe function for each fail condition of sensor, actuator, switch,
4WD control module or its circuit.
Scan Tool Data
S5JB0A3314009
DTC No.
Trouble Area
Fail-Safe Operation
Transfer actuator switch 1 circuit open
4WD control module stops outputting of control
signal to transfer actuator (When shifting, stop it
stops outputting after shifting is completed).
Transfer actuator switch 1 circuit short
Transfer actuator switch 2 circuit open
Transfer actuator switch 2 circuit short
C1230
Transfer actuator circuit malfunction
4WD control module stops outputting of control
signal to transfer actuator.
C1240
4WD control module power supply circuit
malfunction
Clutch switch circuit short
Scan Tool Data
Vehicle Condition
Normal Condition /
Reference Value
Vehicle speed
At vehicle stop
0 km/h, 0 mph
Actuator Pos Sen
Transfer shifted to 4H position
4H
Transfer being shifted between 4H-lock and 4H position
4H-lock – 4H
Transfer shifted to 4H-lock position
4H-lock
Transfer being shifted between 4H and N position
4H – N
Transfer shifted to 4L-lock position
4L-lock
Transfer being shifted between N and 4L-lock position
N – 4L-lock
Transfer shifted to N position
N
Actuator motor Pos
Transfer shifted to 4H position
4H
Transfer shifted to 4H-lock position
4H-lock
Transfer shifted to 4L-lock position
4L-lock
Transfer shifted to N position
N
Battery voltage
Ignition switch ON and engine stop
10 – 14 V
4L/N switch
Transfer shifted to 4L-lock or N position
ON
Transfer shifted to 4H or 4H-lock position
OFF
Center diff lock SW
Transfer shifted to 4H or N position
ON
Transfer shifted to 4H-lock or 4L-lock position
OFF
N range signal (AT)
A/T shifted to “N” range
ON
A/T shifted to other than “N” range
OFF
CPP switch (MT)
Clutch pedal depressed
OFF
Clutch pedal released
ON
Mode switch 1
Transfer switch selected to N position
ON
Transfer switch selected to 4H, 4H-lock or 4L-lock position
OFF
Mode switch 2
Transfer switch selected to 4H, 4H-lock or N position
ON
Transfer switch selected to 4L-lock position
OFF
Mode switch 3
Transfer switch selected to 4H-lock or 4L-lock position
ON
Transfer switch selected to 4H or N position
OFF
Warning buzzer
Buzzer not being sound
OFF
Transfer shifted to N Position
N Pos
Transfer shifted to disagreement of transfer switch and transfer
position
Error
ABS active
ABS operating
ON
ABS not operating
OFF
Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-23
Scan Tool Data Definitions
S5JB0A3314011
Vehicle Speed (KM/H, MPH):
This parameter indicates vehicle speed calculated
by 4WD control module.
Actuator Pos Sen (Transfer shift actuator motor
position switch) (4H / 4H-lock / 4L-lock / N / 4H-
lock-4H / 4H-N / N-4L-lock):
This parameter indicates transfer shift actuator
motor position switch status detected by 4WD
control module.
Actuator motor Pos (Transfer shift actuator motor
position) (4H / 4H-lock / 4L-lock / N):
This parameter indicates transfer shift actuator
motor position detected by 4WD control module
using transfer shift actuator motor position.
Battery voltage (V):
This parameter indicates battery voltage detected by
4WD control module.
4L / N switch (ON / OFF):
This parameter indicates 4L / N switch status
detected by 4WD control module.
Center diff lock Sw (ON / OFF):
This parameter indicates center differential lock
switch status detected by 4WD control module.
N range signal (AT) (ON / OFF):
This parameter indicates A/T shift position (“N” range
or not) detected by 4WD control module.
CPP switch (Clutch pedal position switch) (MT) (ON /
OFF):
This parameter indicates clutch pedal position switch
status detected by 4WD control module using CPP
switch.
Mode switch 1 (Transfer switch) (ON / OFF):
ON: Transfer switch to N position.
OFF: Transfer switch to other than N position.
Mode switch 2 (Transfer switch) (ON / OFF):
ON: Transfer switch to other than 4L-lock position.
OFF: Transfer switch to 4L-lock position.
Mode switch 3 (Transfer switch) (ON / OFF):
ON: Transfer switch to 4H-lock or 4L-lock position.
OFF: Transfer switch to 4H or N position.
Warning buzzer (OFF / N Pos / Error):
This parameter indicates if buzzer is being
commanded by 4WD control module.
ABS active (ON / OFF):
This parameter indicates ABS status detected by
4WD control module.
4WD Control Symptom Diagnosis
S5JB0A3314012
Diagnose transfer assembly after performing the following inspections.
1) Perform 4WD control system check referring to “4WD Control System Check: Motor-Shift Type (Transfer with Shift
2) Confirm 4WD control system operation referring to “4WD Control System Operation: Motor-Shift Type (Transfer
Condition
Possible cause
Correction / Reference Item
Transfer does not operate
(Transfer position
indicator does not
operate)
Transfer switch faulty
Check switch referring to “Transfer Switch
Inspection: Motor-Shift Type (Transfer with
Shift Actuator)”.
Transfer shift actuator faulty
Check transfer shift actuator referring to
“Transfer Assembly Inspection: Motor-Shift
Type (Transfer with Shift Actuator)”.
4L/N switch and/or switch center
differential lock switch faulty
Check switch referring to “Transfer Assembly
Inspection: Motor-Shift Type (Transfer with
Shift Actuator)”.
Transmission range sensor (“N” range)
faulty (for A/T model)
Adjust or check transmission range sensor
referring to “Transmission Range Sensor
Inspection and Adjustment in Section 5A”.
CPP switch faulty (for M/T model)
Check CPP switch referring to “Clutch Pedal
Position (CPP) Switch Inspection and
Adjustment in Section 5C”.
Wiring or grounding faulty
Repair as necessary.
4WD control module faulty
Check 4WD control module referring to
“Inspection of 4WD Control Module and Its
Circuits: Motor-Shift Type (Transfer with Shift
Actuator)”.
3C-24 Transfer: Motor-Shift Type (Transfer with Shift Actuator)
Transfer refuses to
operate (Transfer position
indicator flashes, and
then transfer does not
shift)
Transfer shift actuator faulty
Check transfer shift actuator referring to
“Transfer Assembly Inspection: Motor-Shift
Type (Transfer with Shift Actuator)”.
4L/N switch and/or center differential
lock switch faulty
Check switch referring to “Transfer Assembly
Inspection: Motor-Shift Type (Transfer with
Shift Actuator)”.
Distorted control cover shift shaft or shift
fork
Check shift fork referring to “Transfer Assembly
Inspection: Motor-Shift Type (Transfer with
Shift Actuator)”.
Weakened control cover shift shaft
spring
Check spring referring to “Transfer Assembly
Inspection: Motor-Shift Type (Transfer with
Shift Actuator)”.
Distorted or dispositioned control cover
shift shaft snap ring and washer
Check snap ring and washer referring to
“Transfer Assembly Inspection: Motor-Shift
Type (Transfer with Shift Actuator)”.
Worn chamfered tooth on sleeve or gear Check chamfered tooth and gear referring to
“Transfer Assembly Inspection: Motor-Shift
Type (Transfer with Shift Actuator)”.
Wiring or grounding faulty
Repair as necessary.
4WD control module faulty
Check 4WD control module referring to
“Inspection of 4WD Control Module and Its
Circuits: Motor-Shift Type (Transfer with Shift
Actuator)”.
Gear slipping out of mesh Worn control cover shift shaft
Check control cover shift shaft referring to
“Transfer Assembly Inspection: Motor-Shift
Type (Transfer with Shift Actuator)”.
Worn shift fork or sleeve
Check shift fork or sleeve referring to “Transfer
Assembly Inspection: Motor-Shift Type
(Transfer with Shift Actuator)”.
Weak or damaged control cover shift
shaft spring
Check spring referring to “Transfer Assembly
Inspection: Motor-Shift Type (Transfer with
Shift Actuator)”.
Worn bearings on input gear or counter
gear
Check bearing referring to “Transfer Assembly
Inspection: Motor-Shift Type (Transfer with
Shift Actuator)”.
Worn chamfered tooth on sleeve or gear Check sleeve and gear referring to “Transfer
Assembly Inspection: Motor-Shift Type
(Transfer with Shift Actuator)”.
Missing or disengagement of circlip(s)
Check circlip(s) referring to “Transfer Assembly
Inspection: Motor-Shift Type (Transfer with
Shift Actuator)”.
Noise
Damaged or worn bearing(s)
Refer to “Transfer Assembly Inspection: Motor-
Shift Type (Transfer with Shift Actuator)”.
Damaged or worn gear(s)
Refer to “Transfer Assembly Inspection: Motor-
Shift Type (Transfer with Shift Actuator)”.
Damaged or worn chamfered tooth on
sleeve or gear
Refer to “Transfer Assembly Inspection: Motor-
Shift Type (Transfer with Shift Actuator)”.
Condition
Possible cause
Correction / Reference Item
Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-25
Transfer Position Indicator Does Not Come ON at Ignition Switch ON but Engine Stops
S5JB0A3314039
Wiring Diagram
Circuit Description
Transfer position indicator operates according to the signal from 4WD control module. If the transfer control system is
in good condition, transfer position indicator light up for 2 seconds when ignition switch is turned to ON position, and
then turned to OFF position. If an abnormality is detected in the system, transfer position indicator remains lighting.
E91-22
E91-23
RED
WHT
RED
WHT
G28-10
G28-8
1
2
G28-13
PPL/RED
BLK
WHT/GRN
BLK/YEL
8
G28-15
4
6
7
5
3
1
2
3
4
5
6
7
8
9
10
11
17
1615141312
2221201918
[B]
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]
I5JB0A332015-03
[A]: 4WD control module connector “E91” (viewed from harness side)
4. 4L indicator
[B]: Combination meter connector (viewed from harness side)
5. N indicator
1. 4WD control module
6. Junction block assembly
2. Combination meter
7. “METER” fuse
3. Differential lock indicator
8. Ignition switch
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