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Home >> Suzuki >> 2012 >> SX4 Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Continuously Variable Transaxle (CVT)) >> Diagnostic Information and Procedures >> DTC P0847/P0848: Transmission Fluid Pressure Sensor/Switch "B" Circuit Low/Transmission Fluid Pressure Sensor / Switch "B" Circuit High >> DTC Troubleshooting

DTC Troubleshooting

WARNING: This page is about a different variant/trim than selected.
DTC P0847/P0848 TROUBLESHOOTING CHART

Step Action YES NO
1  Was "CVT System Check" performed?  Go to Step 2. Go to CVT SYSTEM CHECK .
2  Sensor power supply check 
  1. Turn off ignition switch and disconnect solenoid connector.
  2. Check for proper terminal connection to solenoid connector.
  3. If connections are OK, turn ignition switch to ON position.
  4. Check that voltage between sensor power supply circuit (B1) and vehicle body ground is 5 V.

Is it in good condition? 		 Go to Step 3. Repair or replace defective wire harness.
3  Secondary pressure sensor signal circuit and ground circuit check 
  1. Turn off ignition switch and disconnect connectors from solenoid connector and TCM.
  2. Check for proper terminal connection to solenoid connector and TCM connectors.
  3. If connections are OK, check that secondary pressure sensor circuit (A2) and sensor ground circuit (B2) are as follows.
    • Wiring harness resistance of secondary pressure sensor signal circuit and ground circuit is less than 1 Ω.
    • Insulation resistance of secondary pressure sensor signal circuit is infinity between solenoid connector and vehicle body ground.
    • Insulation resistance of wire harness is infinity between secondary pressure sensor signal circuit terminal and each terminal at solenoid connector.
    • Circuit voltage of secondary pressure sensor signal circuit and sensor ground circuit is 0 - 1 V with ignition switch in ON position.

Are they in good condition? 		 Go to Step 4. Repair or replace defective wire harness.
4  Secondary pressure sensor check 
  1. Connect solenoid connector and TCM connectors.
  2. Check voltage between connector terminal "C10-15" and vehicle body ground. See Inspection of TCM and Its Circuits 

Is it in good condition? 		 Substitute a known-good TCM and recheck. Replace secondary pressure sensor (valve body assembly).
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