1998 JAGUAR X308 Workshop Manual

Page 1553 of 2490

JAGUAR X308 1998 2.G Workshop Manual  With EM012 and EM021 disconnected, measure the 
resistance between EM012/022 and EM021/004. 1 
Is the resistance < 0.5 OHM? 
Yes GO to B15  
No  Inspect connectors EM012  and EM021 for corrosion, 
da

Page 1554 of 2490

JAGUAR X308 1998 2.G Workshop Manual  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

Page 1555 of 2490

JAGUAR X308 1998 2.G Workshop Manual  Is the voltage 0 (zero) V? 
Yes GO to B17  
No  Inspect harness / connectors  EM010, EM012 and EM021 for 
corrosion, damaged / pushed back pins. Repair as necessary 
and reconnect plug(s). 
GO to B19

Page 1556 of 2490

JAGUAR X308 1998 2.G Workshop Manual Ignition switch to position 0 1 
Remove EMS fuse F14. 2 
Disconnect EM010 and EM015. 3 
Using a link lead, bridge EM010/016 and EM010/022. 4 
Ignition switch to position II 5 
Measure the voltage betw

Page 1557 of 2490

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 th

Page 1558 of 2490

JAGUAR X308 1998 2.G Workshop Manual  Connect the scan tool 1 
Have the DTC(s) and freeze frame data been recorded? 
Yes  GO to C2  
C2: CHECK FOR O2 SENSOR FAILURE
 Ignition switch to position II 1 
Disconnect EM022 
Bracket on top o

Page 1559 of 2490

JAGUAR X308 1998 2.G Workshop Manual GO to C4  
No  Renew O2 sensor and reconnect plug(s). 
GO to C6  
C4: CHECK FOR O2 SENSOR FAILURE
 With the conditions held as C3, suddenly accelerate to 
approximately 2500 rpm. 1 
Has the voltage ri

Page 1560 of 2490

JAGUAR X308 1998 2.G Workshop Manual  With the conditions held as in C4, run the engine at 1500 
rpm for approximately 3 minutes. 1 
Does the displayed voltage drop below 400mV and rise above 500 
mV, cycling approximately every 180 seco