Suzuki Grand Vitara XL-7 Service Manual page 440

TABLE B-2: "O/D OFF" LAMP CIRCUIT CHECK ("O/D OFF" LAMP COMES ON
STEADILY)
WIRING DIAGRAM
Refer to "TABLE B-1" in this section.
TROUBLESHOOTING
Step
1 Check O/D off switch status.
Press O/D off switch button (1).
Does "O/D OFF" lamp come ON steadily?
2 Check lamp circuit for short.
1) Turn ignition switch OFF and disconnect
TCM connectors.
2) Turn ignition switch ON.
Does "O/D OFF" lamp come ON steadily?
3 Check O/D off switch circuit.
1) Check resistance between terminal E202-3
of disconnected TCM harness side
connector and body ground with O/D off
switch button (1) released.
Is continuity indicated?
4 Check O/D off switch for operation.
1) Remove console box.
2) Disconnect O/D off switch connector.
3) Check continuity between switch terminals
under each condition below.
O/D off switch operation
With O/D off switch button (1) released:
No continuity
With O/D off switch button (1) pressed:
Continuity
Is check result satisfactory?
Fig. for Step 1
Action
Fig. for Step 4
AUTOMATIC TRANSMISSION (4 A / T) 7B1-35
Yes
Go to Step 2.
"WHT /BLK" circuit
shorted to ground.
Go to Step 4.
"YEL/RED" circuit
shorted to ground.
No
System is OK.
Go to Step 3.
Check TCM ground
circuit for open.
If ground circuit is OK,
substitute a known-good
TCM and recheck.
Replace O/D off switch.