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Home >> Subaru >> 2013 >> Legacy Premium, Automatic CVT Trans >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Continuously Variable Transaxle (CVT) (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P2762 Lock-Up Duty Solenoid Malfunction >> Trouble Symptom

DTC P2762 Lock-Up Duty Solenoid Malfunction: Trouble Symptom

DIAGNOSTIC PROCEDURE

Step Check Yes No
1 CHECK DTC. 
Read the DTC relating the ECM using the Subaru Select Monitor.
Is DTC displayed? Perform the diagnosis according to DTC. Go to step .
2 CHECK DTC. 
Read the DTC relating the TCM using the Subaru Select Monitor.
Are DTC P0841, P0842, P0843 displayed? Perform the diagnosis according to DTC. Go to step .
3 CHECK TRANSMISSION FLUID. 
Check the condition of ATF. Refer to CONDITION CHECK .
Is the ATF OK? Go to step . Check according to the "corrective action" of ATF (CVTF) "CONDITION CHECK". Refer to CONDITION CHECK .
4 CHECK TRANSMISSION FLUID. 
Check the amount of ATF. Refer to ADJUSTMENT .
Is the ATF amount correct? Go to step . Adjust the amount of ATF. Refer to ADJUSTMENT .
5 CHECK INPUT SIGNAL FOR TCM. 
  1. Lift up the vehicle.
  2. Start the engine.
  3. Warm up until the ATF temperature reaches to 40 - 70°C (104 - 158°F).
  4. Shift the select lever to "P" range.
  5. Stabilize the engine speed at idle.
  6. Read the data of «Actual secondary pressure» using Subaru Select Monitor.
Is the «Actual secondary pressure» 0.5 - 1.5 MPa? Go to step . Perform the diagnosis according to DTC P0841 procedure.
6 DRIVING CHECK FOR LOCK-UP CONDITION. 
  1. Perform the "Clear Memory Mode". Refer to CLEAR MEMORY MODE .
  2. Turn the ignition switch to OFF.
  3. Start the engine.
  4. Warm up until the ATF temperature exceeds 50°C.
  5. Drive the vehicle for one minute or more while keeping the constant speed so that the display shown in the Subaru Select Monitor is as follows: «Lock Up Duty Ratio» is 70 % or more, and «Front Wheel Speed» is 40 km/h or more.
  6. Turn the ignition switch to OFF.
  7. Start the engine.
  8. Perform the procedure in step 5) again.
  9. Read the DTC using Subaru Select Monitor.
Does the AT OIL TEMP light blink and is DTC P2762 displayed? Perform the secondary pressure test. Refer to SECONDARY PRESSURE (LINE PRESSURE) TEST . When DTC other than P2762 is displayed, perform the diagnosis corresponding to the DTC. Current condition is normal. Temporary oil pressure malfunction.