Suzuki GRAND VITARA JB416 Service Manual page 163

DTC Detecting Condition and Trouble Area
DTC detecting condition
CPP switch signal is input when vehicle speed is 30 km/h (19
mph).
DTC Confirmation Procedure
1) Clear DTC using scan tool.
2) Start engine and drive vehicle at 50 km/h (31 mile/h) or more vehicle speed at least for 1 min.
3) Stop vehicle and check DTC.
Troubleshooting
Step
1 Was "4WD control system check" performed?
2 CPP switch circuit check
1) Disconnect CPP switch connector with ignition switch
OFF.
2) Check for proper connection to terminal of CPP switch
connector.
3) If connection is OK, measure voltage between "BLK/
ORN" terminal of CPP switch connector and vehicle
body ground with ignition switch ON.
Is it 10 – 14 V?
3 CPP switch check
1) Check CPP switch referring to "Clutch Pedal Position
(CPP) Switch Inspection and Adjustment: in Section 5C
in related manual".
Is switch in good condition?
4 Wire harness check
1) Disconnect connector from 4WD control module
connector "E91" with ignition switch OFF.
2) Check for proper connection to "E91-7" terminal of 4WD
control module connector.
3) If OK, measure resistance between "BLK/ORN" terminal
of CPP switch connector and "E91-7" terminal of 4WD
control module connector.
Ω
Is it 1 M or more?
Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-46
Action
Trouble area
• CPP switch
• CPP switch circuit
• 4WD control module
Yes
Go to Step 2.
Go to Step 3.
Substitute a known-
good 4WD control
module and recheck.
Substitute a known-
good 4WD control
module and recheck.
No
Go to "4WD Control
System Check: Motor-
Shift Type (Transfer with
Shift Actuator)".
Go to Step 4.
Replace CPP switch.
"BLK/ORN" wire is
shorted to ground
circuit.