Suzuki GRAND VITARA JB416, Service Manual

Page: 143 / 474

Transfer: Motor-Shift Type (Transfer with Shift Actuator) 3C-26
Troubleshooting
Step Action Yes No
1 Transfer position indicator power supply check
1) Turn ignition switch to ON position.
Do other indicators come ON?
Go to Step 2. Go to Step 3.
2 Check DTC
1) Connect scan tool to DLC with ignition switch OFF.
2) Turn ignition switch to ON position and check DTC.
Is there DTC(s) U1073, U1100, U1101 and/or U1121?
Go to applicable DTC
diag. flow. Substitute a known-
good combination meter
and recheck. If transfer
position indicator still
remains off, substitute a
known-good 4WD
control module and
recheck.
3 CAN communication circuit check
1) Check CAN communication circuit between combination
meter and 4WD control module referring to “DTC U1073:
Control Module Communication Bus Off: Motor-Shift
Type (Transfer with Shift Actuator)”.
Is CAN communication circuit in good condition?
Go to Step 4. Repair or replace.
4 “METER” fuse check
1) Turn ignition switch to OFF position.
2) Check for fuse blown to “METER” fuse in junction block
assembly.
Is “METER” fuse in good condition?
Go to Step 5. Replace “METER” fuse
and check for short.
5 Combination meter power supply check
1) Remove combination meter referring to “Combination
Meter Removal and Installation: in Section 9C in related
manual”.
2) Check proper connection to combination meter
connector at “G28-13” and “G28-15” terminals.
3) If OK, then turn ignition switch to ON position and
measure voltage between combination meter connector
at “G28-13” terminal and vehicle body ground.
Is it 10 – 14 V?
Go to Step 6. “PPL/RED” wire is open
circuit.
6 Combination meter ground circuit check
1) Turn ignition switch to OFF position.
2) Measure resistance between combination meter
connector at “G28-15” terminal and vehicle body ground.
Is resistance 1
Ω
or less?
Substitute a known-
good combination meter
and recheck. If transfer
position indicator still
remains OFF, substitute
a known-good 4WD
control module and
recheck. “BLK” wire is open or
high resistance circuit.