Pinpoint Test C: P1396 VVT Solenoid Malfunction

P1396 VVT solenoid malfunction





TEST C: RETRIEVE DTCS

NOTE: Battery and or ECM disconnection prior to scanning will erase all data, ensure that the correct DTC is present.

Connect scan tool
Record DTC(s), freeze frame data and
GO to [C2]

C2: CHECK VVT COIL CONTINUITY
With VVT connector PI032 disconnected, measure the resistance between the pins 1 and 2 at the VVT actuator
- Is the resistance >20 Ohms?
Yes
Renew the VVT solenoid and test the system for normal operation.
No
GO to [C3]





C3: CHECK SHORT TO Be
Remove fuse F12
With EM015, EM014, PI031 and PI032 disconnected, measure the voltage between EM015/008 and EM014/009
- 0 V?
Yes
Reconnect EM015 and EM014 and replace fuse F12
GO to [C4]
No
Inspect EM015, PI001 or PI032 for bent/pushed back pins or locate and repair the harness/connector. Test the system for normal operation.





C4: CHECK B+ AT VVT SOLENOID
Measure the voltage between PI032/002 and ground EM016L
- B+?
Yes
GO to [C5]
No
Inspect EM020/010 PI031 (PI032) for bent/pushed back pins or locate and repair harness/splice PIS06.
Check fuse F12 is good and EMS control RELAY 1 energized. Test the system for normal operation.





C5: CHECK HARNESS SHORT TO GROUND
With EM015 and EM014 disconnected, measure the insulation resistance between EM015/008 and ground EM014/009
- Is the resistance > 10 M Ohms?
Yes
Do not reconnect
GO to [C6]
No
Inspect EM015, and EM014 for corrosion, bent/pushed back pins or locate and repair the harness/connector. Test the system for normal operation.





C6: CHECK HARNESS SHORT CORE TO CORE
With EM015, EM014, PI031 and PI032 disconnected, measure the insulation resistance between EM015/009 and EM015/008
- Is the resistance > 10 M Ohms?
Yes
Reconnect all connectors
No
GO to [C7]
Inspect EM015, PI031 and PI032 for corrosion, bent/pushed back pins or locate and repair the harness/connector PI001/016 or PI001/027. Test the system for normal operation.





C7: CHECK HARNESS CONTINUITY
With EM015 and PI032 disconnected, measure the resistance between EM015/008 and PI032/001
- Is the resistance < 0.5 Ohms?
Yes
GO to [C8]
No
Inspect harness/connectors EM015, PI032 and PI001/027 for corrosion, damage, bent or pushed back pins and repair as required. Test the system for normal operation.





C8: CHECK HARNESS (GROUND) CONTINUITY
With EM014 disconnected, measure the resistance between EM014/009 and ground EM016L
- Is the resistance < 0.5 Ohms?
Yes
Reconnect EM014,EM015,PI031 or (PI032)
GO to [C10]
No
Inspect harness/connector EM014, ground stud and splice EMS037 for corrosion, damage, bent or pushed back pins and repair as required. Test the system for normal operation.

C9: CHECK MECHANICAL CONDITION
Remove the VVT(s) and ensure that there is no foreign matter blocking the oil passageway
- OK?
Yes
GO to [C10]
No
Rectify as required

C10: END
Perform appropriate service drive cycle and check for the presence of DTC.
- Has the fault code cleared?
Yes
STOP
No
Contact Jaguar Service