JAGUAR X308 1998 2.G Workshop Manual

With EM062 and GB001 disconnected, measure the
resistance between EM062/014 and EM008R 1
Repeat for EM062/015 and EM008R 2
EM062/016 and EM008R 3
Is the resistance > 10 MOHM?
Yes GO to C8
No Inspect EM062 for corrosion, bent / pushed back pins or
locate harness. Repair as necessary and test the system
for normal operation.
C8: CHECK INTERNAL HARNESS AND CO MPONENT CONTINUITY - SOLENOIDS

With EM062 disconnected, measure the resistance
between the following, noting the relevant DTC 1
For P0702 or P0753 EM062/38 and EM062/014 2
For P0702 or P0758 EM062/38 and EM062/016 3
For P0702 or P0763 EM062/38 and EM062/015 4
Is the resistance 105 to 110 kOHM?
Yes Reconnect EM062
GO to C10
No Disconnect GB001 and reconnect EM062
GO to C9
C9: RENEW VALVE BODY ASSEMBLY
Renew the Valve Body Assembly; refer to 44.40.01. 1
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 2
Has the fault code cleared?
Yes STOP
No GO to C10
C10: 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 P0702 present?
Yes GO to D1
No

Pinpoint test D: P0702, P0748, P1748
P0753, P0758, P0763 present?
Yes Contact Jaguar Service
PINPOINT TEST D : P0702, P0748, P1748
TEST CONDITIONSDETAILS/RESULTS/ACTIONS
D1: 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 D2

D2: CHECK HARNESS +VE CONTINUITY
With EM062 and GB001 disconnected, measure the
resistance between GB001/006 and EM062/038 1
Is the resistance < 0.5 OHM?
Yes GO to D3

No Inspect EM062, EM044 and GB001 for corrosion, bent /
pushed back pins or locate harness. Repair as necessary
and test the system for normal operation.
D3: CHECK FOR SHORT TO B+
With EM062 and GB001 disconnected, measure the
resistance between EM062/038 and EM061/029 1
> 10 MOHM?
Yes GO to D4
No Inspect EM062, EM044 and GB001 for corrosion, bent /
pushed back pins or locate harness. Repair as necessary
and test the system for normal operation.
D4: CHECK HARNESS SHORT TO GROUND

With EM062 and GB001 disconnected, measure the
resistance between EM062/038 and EM008R 1
Is the resistance > 10 MOHM?
Yes GO to D5
No Inspect EM062 for corrosion, bent / pushed back pins or
locate harness. Repair as necessary and test the system
for normal operation.
D5: CHECK HARNESS CONTINUI TY - PRESSURE REGULATOR

With EM062 and GB001 disconnected, measure the
resistance in turn: 1
EM062/036 and GB001/002 2
EM062/037 and GB001/010 3
Is the resistance < 0.5 OHM?
Yes GO to D6
No Inspect EM062, EM044 and GB001 for corrosion, bent /
pushed back pins or locate harness. Repair as necessary
and test the system for normal operation.
D6: CHECK FOR SHORT TO B+

With EM062 and GB001 disconnected, measure the
resistance between EM062/036 and EM061/029 1
Repeat for EM062/037 and EM061/029 2
Is the resistance > 10M OHM?
Yes GO to D7
No Inspect EM062 and GB001 for corrosion, bent / pushed
back pins or locate harness. Repair as necessary and test
the system for normal operation.
D7: CHECK HARNESS SHORT TO GROUND

With EM062 and GB001 disconnected, measure the
resistance between EM062/036 and EM008R 1
Repeat for EM062/037 and EM008R 2
Is the resistance > 10 MOHM?
Yes GO to D8
No Inspect EM062 for corrosion, bent / pushed back pins or
locate harness. Repair as necessary and test the system
for normal operation.
D8: CHECK INTERNAL HARNESS AND COMPON ENT CONTINUITY - PRESSURE REGULATORS

Pinpoint test E: P0702
With EM062 disconnected, measure the resistance
between the following, noting the relevant DTC 1
For P0702 or P0748 EM062/38 and EM062/036 2
For P0702 or P1748 EM062/38 and EM062/037 3
Is the resistance 16 to 18 kOHM?
Yes Reconnect EM062
GO to D9
No Renew the Valve Body Assembly; refer to 44.40.01.
Drive the vehicle for a period from cold to include idle,
brisk acceleration and steady state cruising up to and
including normal engine temperature.
GO to D9
D9: 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 : P0702
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 SENSOR SUPPLY VOLTAGE
With GB001 disconnected, measure the voltage between
GB001/007 and GB001/012 1
Is voltage B+?
Yes Reconnect GB001
GO to E5
No GO to E3
E3: CHECK HARNESS +VE CONTINUITY