Dtc P1878 Torque Converter Clutch Shudder; Dtc P2763 Torque Converter Clutch (Tcc) Circuit High - Suzuki Grand Vitara Manual

DTC P1878 Torque Converter Clutch Shudder

DTC Detecting Condition and Trouble Area
DTC Detecting Condition
The acceleration slip control function stops when the
variation in the output revolution speed of the specified
amplitude and specified cycle is detected within a specified
period of time. When the specified variation is not detected
after the acceleration slip control stops.
(20 driving cycle detection logic)
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 warm it up to normal operating temperature.
4) Drive vehicle with 3rd or 4th gear in "D" range and slip controlled lock-up ON for 20 seconds or longer referring to
"Automatic Gear Shift Table: ".
5) Stop vehicle.
6) Check DTC, pending DTC and freeze-frame data.
DTC Troubleshooting
Step
1 Was "A/T System Check" performed?
2 1) Change A/T fluid referring to "A/T Fluid Change: ".
2) Check DTC after performing "DTC Confirmation
Procedure: ".
Is DTC P1878 still indicated?

DTC P2763 Torque Converter Clutch (TCC) Circuit High

Wiring Diagram
1. TCC pressure control solenoid valve
2. TCM
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Action
2
12V
E92-5 GRN/YEL
PPL/WHT
E92-3
E92
6 5 4 3 2 1
16 15 14 13 12 11 10 9 8 7
24 23 22 21 20 19 18 17
3. Terminal arrangement of TCM connector (viewed from harness side)
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Automatic Transmission/Transaxle:
• Mismatching ATF
• Torque converter clutch malfunction
• TCM
Yes
Go to Step 2.
Faulty torque converter
clutch. Replace torque
converter.
1
E93
6 5 4 3 2 1
17 16 15 14 13 12 11 10 9 8 7
21 20 19 18
26 25 24 23 22
S5JB0A5104060
Trouble Area
No
Go to "A/T System
Check: ".
System is in good
condition.
S5JB0A5104051
3
I5JB0A510027-01
5A-71