Dtc P0748 (No. 41 Or 42): Pressure Control Solenoid Electrical - Suzuki Liana RH413 Service Manual

DTC P0748 (No. 41 or 42): Pressure Control Solenoid Electrical

Wiring Diagram
1. TCM
2. Pressure control solenoid valve
DTC Detecting Condition and Trouble Area
DTC detecting condition
• Too much electric flow is detected on pressure control
solenoid valve circuit.
• No electric flow is detected on pressure control solenoid
valve circuit.
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch OFF.
2) Clear DTCs in TCM and ECM memories by using scan tool.
3) Start engine and run if for 1 minute.
4) Check DTC, pending DTC and freeze frame data, if available.
DTC Troubleshooting
Step
1 Was "A/T System Check" performed?
2 Check pressure control solenoid valve circuit for IG
short
1) Turn ignition switch OFF and disconnect TCM
connectors.
2) Check for proper connection to TCM at terminals "G08-
11" and "G08-8".
3) If OK, turn ignition switch ON and measure voltage
between terminal "G08-11" of disconnected harness side
TCM connector and ground.
Is it 0 – 1 V?
1
12V
G08-11
G08-8
G08
11 8
3. A/T
4. Terminal arrangement of TCM connector (viewed from harness side)
Action
Automatic Transmission/Transaxle:
2
GRY/RED
GRY/BLK
G07
• Pressure control solenoid valve circuit shorted to
power circuit
• Pressure control solenoid valve circuit open or
shorted to ground
• Pressure control solenoid valve malfunction
• TCM
Yes
Go to Step 2.
Go to Step 3.
S3RH0A5104029
3
4
I2RH0B510024-01
TrouBle Area
No
Go to "A/T System
Check".
"GRY/RED" or "GRY/
BLK" circuit shorted to
power circuit.
5A-59