JAGUAR X308 1998 2.G Workshop Manual

With EM007 and EM046 disconnected, measure the
resistance in turn; 1
EM007/005 and EM046/002 2
EM007/001 and EM046/003 3
EM007/029 and EM046/007 4
EM007/004 and EM046/011 5
EM007/051 and EM046/015 6
Is the resistance < 0.5 OHM?
Yes GO to D8
No Inspect harness / connectors EM007 and EM046 for damage,
corrosion, bent / pushed back pins. Repair as necessary and
test the system for normal operation.
D8: CHECK FOR PRESSURE REGULATOR SHORT TO B+

With EM007 and EM046 disconnected, measure the
resistance between EM007/005 and EM007/026 1
Repeat for EM007/001 and EM007/026 2
EM007/029 and EM007/026 3
EM007/004 and EM007/026 4
EM007/051 and EM007/026 5
Is the resistance > 10 MOHM?
Yes GO to D9
No Inspect harness / connectors EM007 and EM046 for damage,
corrosion, bent / pushed back pins. Repair as necessary and
test the system for normal operation.
D9: CHECK HARNESS SHORT TO GROUND

With EM007 and EM046 disconnected, measure the
resistance between EM007/005 and EM008R 1
Repeat for EM007/001 and EM008R 2
EM007/029 and EM008R 3
EM007/004 and EM008R 4
EM007/051 and EM008R 5
Is the resistance > 10 MOHM?
Yes GO to D10
No Inspect harness / connectors EM007 for damage, corrosion,
bent / pushed back pins. Repa ir as necessary and test the
system for normal operation.
D10: CHECK FOR SHORT TO IGNITION

With EM007 and EM046 disconnected, measure the
resistance between EM007/005 and EM007/054
Repeat for
1
EM007/001 and EM007/054 2
EM007/029 and EM007/054 3
EM007/004 and EM007/054 4
EM007/051 and EM007/054 5
Is the resistance > 10 MOHM?
Yes Reconnect EM046
GO to D11
No Inspect harness / connectors EM007 for damage, corrosion,
bent / pushed back pins. Repa ir as necessary and test the
system for normal operation.
D11: CHECK INTERNAL HARNESS AND COMPON ENT CONTINUITY - PRESSURE REGULATORS

With EM007 disconnected, measure the resistance between
the following, noting the relevant DTC 1
For P0702 or P1745 EM007/52 and EM007/005 2
For P0702 or P1746 EM007/52 and EM007/001 3
For P0702 or P1747 EM007/52 and EM007/029 4
For P0702 or P0743 EM007/52 and EM007/004 5
For P0702 or P1748 EM007/52 and EM007/051 6
Is the resistance 5 to 7 OHM?
Yes Reconnect EM007
GO to D14
No Disconnect EM046 and reconnect EM007
GO to D12
D12: INTERNAL TRANSMISSION CHECK
Remove the fluid pan; refer to 44.24.04. Disconnect the
harness from the relevant pres sure regulator and measure
the component resistance. 1
5 to 7 OHM?
Yes

Pinpoint test E: P1720 (P0721)
GO to D13
No Renew the pressure regulator; refer to 44.15.51.
D13: INTERNAL TRANSMISSION HARNESS CHECK
Measure the resistance from transmission internal harness
multiplug to the relevant pr essure regulator connector 1
Is the resistance < 0.5 OHM?
Yes
GO to D14
No Renew the internal harnes s; refer to 44.15.35.
D14: END
Cycle the ignition ON - (OFF for 2 minutes) - ON, start the
engine and run >1600 rpm 1
Has the fault code cleared?
Yes
STOP
No Contact Jaguar Service
PINPOINT TEST E : P1720 (P0721)
TEST CONDITIONSDETAILS/RESULTS/ACTIONS
E1: RETRIEVE DTCS
• NOTE: Battery and or ECM disconnection prior to scanning wi ll erase all data, ensure that the correct DTC is present.
Connect the scan tool 1
Have the DTC(s) and freeze frame data been recorded?
Yes GO to E2
E2: CHECK HARNESS +VE CONTIN UITY (OUTPUT SPEED SENSOR)

With EM007 and EM046 disconnected, measure the
resistance between EM046/001 and EM007/016 1
Is the resistance < 0.5 OHM?
Yes Reconnect EM046
GO to E3
No Inspect harness / connectors EM007 and EM046 for damage,
corrosion, bent / pushed back pins. Repair as necessary and
test the system for normal operation.
E3: CHECK HARNESS -VE CONTINUITY (OUTPUT SPEED SENSOR)

With EM007 and EM046 disconnected, measure the
resistance between EM046/010 and EM007/044 1
Is the resistance < 0.5 OHM?
Yes GO to E4
No Inspect harness / connectors EM007 and EM046 for damage,
corrosion, bent / pushed back pins. Repair as necessary and
test the system for normal operation.
E4: CHECK OUTPUT SPEED SENSOR COIL CONTINUITY

With, EM007 disconnected, measure the sensor value
between EM007/016 and EM007/044 1
Is the resistance between 280 and 1200 OHM?
Yes GO to E5
No Renew the output speed sensor.
E5: CHECK FOR SHORT TO B+
With EM007 disconnected, measure the voltage between
EM007/015 and EM007/044 1
Repeat for EM007/016 and EM007/044 2
0V?
Yes GO to E6
No Inspect harness / connectors EM007 and EM046 for damage,
corrosion, bent / pushed back pins. Repair as necessary and
test the system for normal operation.
E6: CHECK HARNESS SHORT TO SCREEN

With EM007 and EM046 disconnected, measure the insulation resistance between EM007/016 and EM007/023 1
Is the resistance > 10 MOHM?
Yes GO to E7
No Inspect harness / connectors EM007 and EM046 for damage,
corrosion, bent / pushed back pins. Repair as necessary and
test the system for normal operation.
E7: CHECK HARNESS CORE TO CORE INSULATION