O/D Off" Lamp Circuit Check - Suzuki Liana RH413 Service Manual

5A-76 Automatic Transmission/Transaxle:

"O/D OFF" Lamp Circuit Check

Wiring Diagram
1. TCM
2. "O/D OFF" lamp
Circuit Description
Operation (ON/OFF) of "O/D OFF" lamp is controlled by transmission control module (TCM) and combination meter.
When ignition switch is turned ON and malfunction is not detected, TCM turns "O/D OFF" lamp ON only for 2 seconds
to check bulb and turns it OFF.
For vehicle without immobilizer lamp, when ignition switch is turned ON regardless of engine running or not and
malfunction is detected, "O/D OFF" lamp is blinked by TCM and combination meter while malfunction is detected to
warn driver of such occurrence of trouble.
When communication circuit between TCM and combination meter break down (open or shot), "O/D OFF" lamp blinks
only for 10 seconds.
Troubleshooting
Step
1 1) Check O/D off switch status.
2) Press O/D off switch button.
Does "O/D OFF" lamp steadily?
2 Check O/D off switch circuit
1) Turn ignition switch OFF and disconnect TCM
connectors.
2) Check resistance between terminal "G07-3" of
disconnected harness side connector and ground with
O/D off switch OFF.
Is continuity indicated?
12V
4
GRN/BLK G07-3
G08
3. To ignition switch
4. O/D off switch
Action
1
RED/YEL
G07-10
G07
3
10
5. Terminal arrangement of TCM connector (viewed from harness side)
Yes
Go to Step 2.
Go to Step 3.
S3RH0A5104040
2
5V
3
5
I2RH0B510035-01
No
Go to Step 4.
Faulty combination
meter or TCM.
Inspect combination
meter referring to "O/D
OFF Indicator Lamp (A/
T Vehicle Only)
Symptom Diagnosis in
Section 9C".
If OK, substitute a
know-good TCM and
recheck.