1998 JAGUAR X308 sensor

Pinpoint test A: P0741, P0742, P0743
Pinpoint test B: P0743
Connector pin(s) bent or tracking between
connections
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DTC P1789 Ignition supply malfunction >7 < 9
voltsBattery charging system fault
Blown fuse
Harness fault
Connector loose or corroded
Connector pin(s) bent or tracking between
connections Ground fault
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*
*
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*GO to Pinpoint
Test K
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DTC P0710 Transmission fluid temperature
sensor malfunctionDamaged sensor
Sensor out of range / short
Harness open circuit
Harness short
Connector loose or corroded
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*GO to Pinpoint
Test L
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PINPOINT TEST A : P0741, P0742, P0743
TEST CONDITIONSDETAILS/RESULTS/ACTIONS
A1: 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 A2
A2: RENEW TORQUE CONVERTER
Renew the torque converter 1
Has the torque converter been renewed?
Yes GO to A3
A3: END
Drive the vehicle for a period from cold to include idle, brisk
acceleration and steady state cruising up to and including
normal engine temperature. Check for the presence of DTC. 1
Has the fault code cleared?
Yes STOP
No Contact Jaguar Service
PINPOINT TEST B : P0743
TEST CONDITIONSDETAILS/RESULTS/ACTIONS
B1: RETRIEVE DTCS
• NOTE: Battery and or ECM disconnection prior to scanning wi ll erase all data, ensure that the correct DTC is present

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

Connect the scan tool 1
Have the DTC(s) and freeze frame data been recorded?
Yes GO to F2
F2: CHECK HARNESS +VE CONTINUITY (INPUT SPEED SENSOR)
With EM007 and EM046 disconnected, measure the
resistance between EM046/005 and EM007/042 1
Is the resistance < 0.5 OHM?
Yes
Reconnect EM046
GO to F3
No Inspect harness / connectors EM007 and EM046 for damage,
corrosion, bent / pushed back pins. Repair as necessary and
test the system for normal operation.
F3: CHECK HARNESS -VE CONTINUITY (INPUT SPEED SENSOR)

With EM007 and EM046 disconnected, measure the
resistance between EM046/014 and EM007/006 1
Is the resistance < 0.5 OHM?
Yes GO to F4
No Inspect harness / connectors EM007 and EM046 for damage,
corrosion, bent / pushed back pins. Repair as necessary and
test the system for normal operation.
F4: CHECK INPUT SPEED SENSOR COIL CONTINUITY

With, EM007 disconnected, measure the sensor value
between EM007/042 and EM007/014 1
Is the resistance between 280 and 1200 OHM?
Yes GO to F5
No Renew the input speed sensor
F5: CHECK FOR SHORT TO B+
With EM007 disconnected, measure the voltage between
EM007/014 and EM007/026 1
Repeat for EM007/042 and EM007/026 2
0V?
Yes GO to F6
No Inspect harness / connectors EM007 and EM046 for damage,
corrosion, bent / pushed back pins. Repair as necessary and
test the system for normal operation.
F6: CHECK HARNESS SHORT TO SCREEN