Tcm Power And Ground Circuit Check - Suzuki Liana RH413 Service Manual

Wire
Terminal
color
BLK/
20 Power source
WHT

TCM Power and Ground Circuit Check

Wiring Diagram
1
1. TCM
2. Ignition switch
Troubleshooting
Step
1 Check TCM power circuit
1) Disconnect TCM connector with ignition switch OFF.
2) Check for proper connection to TCM at "G08-20"
terminal.
3) If OK, turn ignition switch ON and check voltage at
terminal "G08-20" of disconnected TCM connector.
Is it 10 – 14 V?
2 Check TCM ground circuit
1) Turn ignition switch OFF.
2) With TCM connectors disconnected, check for proper
connection to TCM at "G08-15" / "G08-19" terminal.
3) If OK, check resistance between "G08-15" / "G08-19"
terminal of disconnected TCM connector and body
ground.
Is continuity indicated?
Standard
Circuit
voltage
10 – 14 V Ignition switch ON
5V
G08-20 BLK/WHT
G08-15
G08-19
G08
20 19 15
3. Terminal arrangement of TCM connector (viewed from harness side)
Action
Automatic Transmission/Transaxle:
IG1
IG11
BLK
BLK
G07
Yes
Go to Step 2.
TCM power and ground
circuits are in good
condition.
Condition
S3RH0A5104039
2
3
I2RH0B510034-01
No
"BLK/WHT" circuit open.
"BLK" circuit for TCM
ground open.
5A-75