Diagnostic Flow Table A-3: "O/D - Suzuki WagonR+ RB310 Service Manual

Diagnostic Flow Table A-3: "O/D OFF" Lamp Circuit Check ("O/D OFF" Lamp
Lights Steadily)
Wiring Diagram
1. TCM
2. "O/D OFF" lamp
3. To ignition switch
Circuit Description
"O/D OFF" lamp operation of ON/OFF is controlled by transmission control module (TCM) and combination
meter.
When ignition switch is turned ON with O/D OFF switch OFF and malfunction is not detected, TCM turn "O/D
OFF" lamp ON only for 2 seconds to check bulb and terns it OFF.
Troubleshooting
Step
1 Check O/D off switch status.
Press O/D off switch button.
Does "O/D OFF" lamp light steadily?
2 Check "O/D OFF" lamp circuit for short.
1) Turn ignition switch OFF and disconnect
TCM connectors.
2) Turn ignition switch ON.
Does "O/D OFF" lamp light steadily yet?
3 Check O/D off switch circuit.
1) Turn ignition switch OFF.
2) Check continuity between terminal "E12-9"
of disconnected harness side connector
and ground.
Is continuity indicated?
1
12V
4
BLU/RED
E12-9
[A]
E13
4. O/D off switch
[A]: Terminal arrangement of TCM connector (viewed from harness side)
Action
AUTOMATIC TRANSAXLE (M13 ENGINE MODEL) 7B1-45
2
E12-11 BLU/YEL
E12
11 9
Yes
Go to Step 2.
"BLU/YEL" circuit shorted
to ground.
Go to step 4.
3
No
System is OK.
Go to Step 3.
Substitute a known-good
TCM and recheck.