Connector JAGUAR X308 1998 2.G Workshop Manual

Pinpoint test C: P0137, P0138
Measure the voltage between EM010/023 and EM015/002. 1
Is the voltage B+?
Yes Remove link lead and reconnect all connectors.
GO to B19
No Check EMS fuse F14 and that EMS control relay (relay 1) is
energized and with all connections made.
GO to B19
B19: 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 C : P0137, P0138
TEST CONDITIONSDETAILS/RESULTS/ACTIONS
C1: RETRIEVE DTCS
• NOTE: Battery and or ECM disconnection prior to scanning wi ll erase all data, ensure that the correct DTC is present.

With EM012 and EM022 disconnected, measure the
resistance between EM012/017 and EM022/002. 1
Is the resistance < 0.5 OHM?
Yes GO to C8
No Inspect harness / connectors EM012 and EM022 for
corrosion, damaged / pushed back pins. Repair as necessary
and reconnect plug(s).
GO to C10
C8: 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 C9
No Inspect harness / connectors EM012 and EM022 for
corrosion, damaged / pushed back pins.
Inspect harness / splice EM S08 for damage. Repair as
necessary and reconnect plug(s).
GO to C10
C9: O2 SENSOR SHORT CIRCUIT TO GROUND

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 C12
No Inspect harness / connector EM010 for corrosion, damage, or
pushed back pin.
Inspect ground stud EM008L for damage or corrosion.
Inspect harness / spli ce EMS36 for damage.
Repair as necessary and reconnect plug(s).
GO to C13
C12: 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 C14
No Inspect harness / connector EM014 for corrosion, damage, or
pushed back pin.
Inspect ground stud EM008L for corrosion or damage.
Inspect splice EMS36 for or damage.
Repair as required an d reconnect plug(s).
GO to C13
C13: 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
C14: CHECK FOR SHORT TO B+

Ignition switch to position 0 1
Disconnect EM010
Inside ECM housing
2
Disconnect EM012
Inside ECM housing
3
Measure the voltage between EM010/023 and EM012/017. 4
Ignition switch to position II 5
Is the voltage 0 (zero) V?
Yes GO to C15
No Inspect harness / connectors EM010, EM012, and EM022 for
corrosion, damaged / pushed back pins. Repair as required
and reconnect plug(s).
GO to C18
C15: CHECK FOR SHORT TO B+

Measure the voltage between EM010/023 and EM012/022. 1
Is the voltage 0 (zero) V?
Yes GO to C16
No Inspect harness / connectors EM010, EM012, and EM022 for
corrosion, damaged / pushed back pins. Repair as required
and reconnect plug(s).
GO to C18
C16: CHECK HARNESS SHORT TO GROUND

Measure the insulation resistance between EM012/017 and
ground EM010/023. 1
Is the resistance > 10 MOHM?
Yes GO to C17
No Inspect harness / connector EM012, EM022 for corrosion,
bent / pushed back pins. Repa ir as required and reconnect
plug(s).
GO to C18
C17: CHECK HARNESS SHORT CORE TO CORE

Pinpoint test D: P0140
Measure the insulation resistance between EM012/017 and
EM012/022. 1
Is the resistance > 10 MOHM?
Yes Reconnect all plugs
GO to C18
No Inspect harness / connector EM012 for corrosion, bent /
pushed back pins. Repair as re quired and reconnect plug(s).
GO to C18
C18: 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 D : P0140
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.

With EM012 and EM022 disconnected, measure the
resistance between EM012/017 and EM022/002. 1
Is the resistance < 0.5 OHM
Yes GO to D9
No Inspect harness / connectors EM012 and EM022 for
corrosion, damaged / pushed back pins. Repair as required
and reconnect plug(s).
GO to D11
D9: O2 SENSOR SCREEN GROUND CONTINUITY