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Home >> Suzuki >> 2010 >> Grand Vitara Base, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle - 4AT >> Diagnostic Information and Procedures >> DTC P0963: Pressure Control Solenoid "A" Control Circuit High >> DTC Troubleshooting
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DTC Troubleshooting

DTC TROUBLESHOOTING CHART

Step Action YES NO
Was "A/T System Check" performed?  Go to Step 2. Go to A/T SYSTEM CHECK .
Check pressure control solenoid valve circuit for power supply short 
  1. Disconnect TCM connectors.
  2. Check for proper connection to TCM at terminal "E92-2" and "E92-4".
  3. If connection is OK, turn ignition switch ON and measure voltage between terminal "E92-2" of disconnected harness side TCM connector and ground.

Is it 0 - 2 V? 
Go to Step 3. Pressure control solenoid valve circuit is shorted to power circuit.
Check pressure control solenoid valve 
  1. Check pressure control solenoid valve referring to SOLENOID VALVES (SHIFT SOLENOID-A, SHIFT SOLENOID-B, TCC PRESSURE CONTROL SOLENOID AND PRESSURE CONTROL SOLENOID) INSPECTION .

Is check results satisfactory? 
Intermittent trouble or faulty TCM. Check for intermittent trouble referring to INTERMITTENT AND POOR CONNECTION INSPECTION . If OK, substitute a known-good TCM and recheck. Replace defective pressure control solenoid valve referring to SOLENOID VALVES (SHIFT SOLENOID-A, SHIFT SOLENOID-B, TCC PRESSURE CONTROL SOLENOID AND PRESSURE CONTROL SOLENOID) REMOVAL AND INSTALLATION .