Suzuki Wagon R Manual page 3374

DTC P2770 Torque Converter Clutch (TCC) Circuit High
Wiring Diagram
1. TCC solenoid valve 2. TCM
DTC Detecting Condition and Trouble Area
DTC DETECTING CONDITION
Voltage of TCC solenoid valve TCM terminal is high
although TCM is commanding TCC solenoid to turn
OFF
DTC Confirmation Procedure
WARNING:
• When performing a road test, select a place where there is no traffic or possibility of a traffic acci-
dent and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out with 2 persons, a driver and tester, on a level road.
1) Connect scan tool to DLC with ignition switch OFF, if available.
2) Clear DTCs in TCM memory.
3) Start engine.
4) Keep engine running at idle speed in "P" range for 10 seconds or more.
5) Check DTC.
12V
E13-5
[A]
C39
5
3. A/T [A]: Terminal arrangement of TCM connector (Viewed from harness side)
AUTOMATIC TRANSAXLE (M13 ENGINE MODEL) 7B1-81
1
2
WHT/BLU
C38
TROUBLE AREA
• TCC solenoid valve circuit shorted to ground.
• Malfunction of TCC solenoid valve
• TCM
3