1998 JAGUAR X308 Connector

With EM010 and EM014 disconnected, measure the
resistance between EM010/023 and chassis ground EM008L. 1
Is the resistance < 0.5 OHM?
Yes GO to A10
No Inspect connector EM010 for co rrosion, damage, or pushed
back pin.
Inspect ground stud EM008L for corrosion.
Repair as required, harness, splice EMS36, connector or
ground; reconnect plug(s).
GO to A11
A10: SIGNAL GROUND 2 CONTINUITY

With EM010 and EM014 disconnected, measure the
resistance between EM014/004 and chassis ground EM008L. 1
Is the resistance < 0.5 OHM?
Yes GO to A12
No Inspect connector EM014 for co rrosion, damage, or pushed
back pin.
Inspect ground stud EM008L for corrosion or damage.
Inspect harness, splice EMS36, connector or ground. Repair
as required and reconnect plug(s).
Repair as required an d reconnect plug(s).
GO to A11
A11: 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
A12: CHECK FOR HEATED O2 SENSOR CONTINUITY

With EM012 and EM021 disconnected, measure the
resistance between EM012/022 and EM021/004 1
Is the resistance < 0.5 OHM?
Yes GO to A14
No Inspect harness / connectors EM012, EM021 and splice
EMS08 for corrosion, damaged / pushed back pins. Repair as
required and reconnect plug(s).
GO to A18
A14: CHECK FOR SHORT TO B+

Ignition switch to position 0 1
Disconnect EM010 and EM012
Inside ECM housing
2
Ignition switch to position II 3
Measure the voltage between EM010/023 and EM012/015 4
Is the voltage 0 (zero) V?
Yes GO to A15
No Inspect harness / connectors EM010, EM012, and EM021 for
corrosion, damaged / pushed back pins. Repair as required
and reconnect plug(s).
GO to A18
A15: CHECK FOR SHORT TO B+
Measure the voltage between EM010/023 and EM012/022 1

Is the voltage 0 (zero) V?
Yes GO to A16
No Inspect harness / connectors EM010, EM012, and EM021 for
corrosion, damaged / pushed back pins. Repair as necessary
and reconnect plug(s).
GO to A18
A16: CHECK FOR SHORT TO B+ AT O2 SENSOR HEATER

Ignition switch to position 0 1
Remove EMS fuse F14 2
Disconnect EM010 and EM015
Inside ECM housing
3
Using a link lead, bridge EM010/016 and EM010/022 4
Ignition switch to position II 5
Measure the voltage between EM010/023 and EM015/002 6
Is the voltage 0 (zero) V?
Yes Replace EMS fuse F14 but retain link lead
GO to A17
No Inspect harness / connectors EM010, EM015, and EM021 for
corrosion, damaged / pushed back pins. Repair as necessary
and reconnect plug(s).
GO to A18
A17: CHECK B+ AT O2 SENSOR HEATER CIRCUIT

Pinpoint test B: P0133
Measure the voltage between EM010/023 and EM015/002 1
Is the voltage B+?
Yes Remove link lead and reconnect all connectors
GO to A18
No Check EMS fuse F14 and that EMS control relay (relay 1) is
energized and with all connections made.
GO to A18
A18: 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 B : P0133
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.

With EM010 and EM014 disconnected, measure the
resistance between EM010/023 and chassis ground EM008L. 1
Is the resistance < 0.5 OHM?
Yes GO to B12
No Inspect connector EM010 for co rrosion, damage, or pushed
back pins.
Inspect earthing stud EM008L for corrosion.
Inspect harness, splice EMS36.
Repair as required an d reconnect plug(s).
GO to B13
B12: SIGNAL GROUND 2 CONTINUITY