Suzuki GRAND VITARA XL-7 Owner's Manual page 268

Step
5 VSS visual inspection:
1) Remove VSS referring to "TRANSFER"
section.
2) Check VSS drive and driven gears for
damage and excessive wear.
Are they in good condition?
6 Speedometer circuit check:
1) With ignition switch OFF, disconnect
G11 coupler from combination meter.
2) With ignition switch ON leaving engine
OFF, check voltage between C20-1 and
C20-2 terminal of VSS coupler.
Is voltage 4 V or more?
7 Cruise control module circuit check (if
equipped):
1) With ignition switch OFF, disconnect
E132 coupler from cruise control mod-
ule.
2) With ignition switch ON leaving engine
OFF, check voltage between C20-1 and
C20-2 terminal of VSS coupler.
Is voltage 4 V or more?
[A] Fig. for Step 3 / [B] Fig. for Step 4, 6, 7
1. VSS coupler
2. "BLU/YEL" (C20-1) terminal
3. "BLK/YEL" (C20-2) terminal
4. "BLU/BLK" (C20-3) terminal
Fig. for Step 5
1. VSS coupler
2. VSS driven gear
3. VSS drive gear
Action
ENGINE GENERAL INFORMATION AND DIAGNOSIS (H27 ENGINE) 6-1-107
Yes
Poor VSS connection or VSS
malfunction.
If connection is OK, substi-
tute a known-good VSS and
recheck.
Substitute a known-good
combination meter and
recheck.
Substitute a known-good
cruise control module and
recheck.
No
Replace VSS.
Go to Step 7.
"BLU/YEL" wire open/
short or faulty ECM
(PCM).
If wire and connection are
OK, substitute a known-
good ECM (PCM) and
recheck.