1998 JAGUAR X308 em 022

With EM012 and EM022 disconnected, measure the
resistance between EM012/022 and EM022/001. 1
Is the resistance < 0.5 OHM?
Yes GO to D10
No Inspect harness / connectors EM012 and EM022 for
corrosion, damaged / pushed back pins.
Inspect harness / splice EMS008 for damage.
Repair as required an d reconnect plug(s).
GO to D11
D10: O2 SENSOR SHORT CIRCUIT TO GROUND

With EM022 disconnected measure the insulation resistance
between sensor pin 001 and sensor body. 1
Repeat for pin 002 and sensor body. 2
Is the resistance > 10 MOHM?
Yes GO to D12
No Renew the O2 sensor and reconnect all plugs.
GO to D11
D11: STOP
Perform appropriate service drive cycle and check for the
presence of DTC. 1
Has the fault code cleared?
Yes STOP
No Contact Jaguar Service
D12: SIGNAL GROUND 1 CONTINUITY

With EM012 and EM022 disconnected, measure the
resistance between EM012/017 and EM022/002. 1
Is the resistance < 0.5 OHM?
Yes GO to D16
No Inspect harness / connectors EM012 and EM022 for
corrosion, damaged / pushed back pins.
Repair as required an d reconnect plug(s).
GO to D21
D16: O2 SENSOR SCREEN GROUND CONTINUITY

With EM012 and EM022 disconnected, measure the
resistance between EM012/022 and EM022/001. 1
Is the resistance < 0.5 OHM?
Yes GO to D17
No Inspect harness / connecto rs EM012, and EM022 for
corrosion, damaged / pushed back pins.
Repair as required an d reconnect plug(s).
GO to D21
D17: CHECK FOR SHORT TO B+

Ignition switch to position 0 1
Disconnect EM010
Inside ECM housing
2
Disconnect EM012
Inside ECM housing
3
Ignition switch to position II 4
Measure the voltage between EM010/023 and EM012/015. 5
Is the voltage 0V?
Yes GO to D18
No Inspect harness / connectors EM010, EM012 and EM022 for
corrosion, damaged / pushed back pins.
Repair as required an d reconnect plug(s).
GO to D21
D18: CHECK FOR SHORT TO B+

Measure the voltage between EM010/023 and EM012/022. 1
Is the voltage 0V?
Yes GO to D19
No Inspect harness / connectors EM010, EM012 and EM022 for
corrosion, damaged / pushed back pins.
Repair as required an d reconnect plug(s).
GO to D21
D19: CHECK HARNESS SHORT TO GROUND

With EM010 and EM012 and EM022 disconnected, measure
the insulation resistance between EM012/017 and ground
EM010/023. 1
Is the resistance > 10 MOHM?
Yes GO to D20
No Inspect harness / connector EM012, EM022 for corrosion,
bent / pushed back pins.
Repair as required an d reconnect plug(s).
GO to D21
D20: CHECK HARNESS SHORT CORE TO CORE

Pinpoint test E: P0151, P0152, P0155
Measure the insulation resistance between EM012/017 and
EM012/022. 1
Is the resistance > 10 MOHM?
Yes Reconnect all plugs
GO to D21
No Inspect harness / connector EM012, EM015 and EM022 for
corrosion, bent / pushed back pins.
Repair as required an d reconnect plug(s).
GO to D21
D21: END
Perform appropriate service drive cycle and check for the
presence of DTC. 1
Has the fault code cleared?
Yes STOP
No Contact Jaguar Service
PINPOINT TEST E : P0151, P0152, P0155
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.