I own a 2004 XJ8 (V.8 4.2L) with 37K miles. Haven't had many problems with the car before but I was driving at about 30 MPH yesterday when suddenly the car just shuts off. The dashboard said ENGINE FAULT, DISC NOT AVAILABLE, AND PARK BRAKE FAULT. I turned the ignition to the off position, then turned it back on immediately. The car started immeadiately with no problems and I continued driving normally. I went to AutoZone to check if I could find any codes that could be found with their hand-held diagnostic reader. It came up with the code P1111 which was generic in their database for multiple cars manufacturers. Can anyone explain what the code P1111 is for Jaguar and was is the fix?

 

P1111 System Pass: Means no issues found..

 

P1000 OBD Systems Readiness Test Not Complete

P1104 Mass Air Flow Sensor Circuit Ground - Read Our Article On Automotive Circuit Testing For Help With This Jaguar Check Engine Light Code

P1111 System Pass

P1121 Pedal Position Sensor A Circuit Range/Performance

P1122 Pedal Position Sensor A Circuit Low Input

P1123 Pedal Position Sensor A Circuit High Input

P1136 Control Box Fan Circuit - Read Our Article On Automotive Circuit Testing For Help With This Jaguar Check Engine Light Code

P1137 Lack Of HO2S12 Switches - Sensor Indicates Lean - Read Our Article on Oxygen Sensor Codes For Help With This Jaguar Check Engine Light Code

P1138 Lack Of HO2S12 Switches- Sensor Indicates Rich

P1143 Air Assisted Injector Control Valve Range/Performance

P1144 Air Assisted Injector Control Valve Circuit - Read Our Article On Automotive Circuit Testing For Help With This Jaguar Check Engine Light Code

P1157 Lack Of HO2S22 Switches - Sensor Indicates Lean - Read Our Article on Oxygen Sensor Codes For Help With This Jaguar Check Engine Light Code

P1158 Lack Of HO2S22 Switches - Sensor Indicates Rich

P1171 System Too Lean- Banks 1 And 2 (Lean Fuel Fault)

P1172 System Too Rich - Banks 1 And 2 (Rich Fuel Fault)

P1174 System Too Lean - Banks 1 And 2 (Suspect HO2S)

P1175 System Too Rich - Banks 1 And 2 (Suspect HO2S)

P1176 Long Term Fuel Trim Too Lean - Banks 1 And 2 (FMFR) - Read Our Article on Oxygen Sensor Codes For Help With This Jaguar Check Engine Light Code

P1177 Long Term Fuel Trim Too Rich - Banks 1 And 2 (FMFR)

P1178 Long Term Fuel Trim Too Lean - Banks 1 And 2 (AMFR)

P1179 Long Term Fuel Trim Too Rich - Banks 1 And 2 (AMFR)

P1185 O2 Sensor Heater Circuit Open - Hardware Fault

P1186 O2 Sensor Heater Circuit Shorted- Hardware Fault

P1187 O2 Sensor Heater Circuit Open - Inferred Fault

P1188 O2 Sensor Heater Circuit Resistance

P1189 O2 Sensor Heater Circuit Low Resistance Fault 1

P1190 O2 Sensor Heater Circuit Low Resistance Fault 2

P1191 O2 Sensor Heater Circuit Open - HArdware Fault

P1192 O2 Sensor Heater Circuit Shorted

P1193 O2 Sensor Heater Circuit Open - Inferred Fault

P1194 O2 Sensor Heater Circuit Resistance Fault

P1195 O2 Sensor Heater Circuit Low Resistance Fault 1

P1196 O2 Sensor Heater Circuit Low Resistance Fault 2

P1198 Fuel Level Input Circuit High

P1199 Fuel Level Input Circuit Low

P1201 Cylinder # 1 Injector Circuit Open/Shorted - Read Our Article On Automotive Circuit Testing For Help With This Jaguar Check Engine Light Code

P1202 Cylinder # 2 Injector Circuit Open/Shorted

P1203 Cylinder # 3 Injector Circuit Open/Shorted

P1204 Cylinder # 4 Injector Circuit Open/Shorted

P1205 Cylinder # 5 Injector Circuit Open/Shorted

P1206 Cylinder # 6 Injector Circuit Open/Shorted

P1207 Cylinder # 7 Injector Circuit Open/Shorted

P1208 Cylinder # 8 Injector Circuit Open/Shorted

P1221 Pedal Demand Sensor B Circuit Range/Performance

P1224 Electronic Throttle Control Position Error

P1226 Mechanical Guard Circuit Range/Performance

P1227 Mechanical Guard Circuit Low Input

P1228 Mechanical Guard Circuit High Input

P1229 Electronic Throttle Control Circuit

P1230 Fuel Pump Relay

P1235 VSV 1/2/3 Circuit Range/Performance - Read Our Article On Automotive Circuit Testing For Help With This Jaguar Check Engine Light Code

P1236 VSV 1 Circuit

P1237 VSV 2 Circuit

P1238 VSV 3 Circuit

P1240 Sensor Power Supply

P1241 Sensor Power Supply Low Input

P1242 Sensor Power Supply High Input

P1243 Analog Ground

P1245 Crank Signal Low Input

P1246 Crank Signal High Input

P1250 Throttle Valve Spring

P1251 Throttle Position

P1252 VSV Stuck On VA/VV

P1253 VSV Stuck On VR

P1260 Theft Detected, Vehicle Immobilized

P1313 Misfire Rate Catalyst Damage Fault - Bank 1

P1314 Misfire Rate Catalyst Damage Fault - Bank 2

P1315 Persistent Misfire

P1316 Misfire Rate Exceeds Emissions

P1336 Crankshaft/Camshaft Sensor Range/Performance

P1340 Camshaft Position Sensor B Circuit - Read Our Article On Automotive Circuit Testing For Help With This Jaguar Check Engine Light Code

P1341 Camshaft Position Sensor B Circuit Range/Performance

P1361 Ignition Coil, Cylinder # 1, No Activation

P1362 Ignition Coil, Cylinder # 2, No Activation

P1363 Ignition Coil, Cylinder # 3, No Activation

P1364 Ignition Coil, Cylinder # 4, No Activation

P1365 Ignition Coil, Cylinder # 5, No Activation

P1366 Ignition Coil, Cylinder # 6, No Activation

P1367 Ignition System Failure Group 1

P1368 Ignition System Failure Group 2

P1370 Insufficient RPM Increase During Spark Test

P1371 Ignition Coil - Cylinder 1 - Early Activation Fault

P1372 Ignition Coil - Cylinder 2 - Early Activation Fault

P1373 Ignition Coil - Cylinder 3 - Early Activation Fault

P1374 Ignition Coil - Cylinder 4 - Early Activation Fault

P1375 Ignition Coil - Cylinder 5 - Early Activation Fault

P1376 Ignition Coil - Cylinder 6 - Early Activation Fault

P1384 Variable Valve Timing Solenoid A Circuit - Read Our Article On Automotive Circuit Testing For Help With This Jaguar Check Engine Light Code

P1392 Variable Valve Timing Solenoid A Circuit Low Input

P1393 Variable Valve Timing Solenoid A Circuit High Input

P1396 Variable Valve Timing Solenoid B Circuit

P1397 Variable Valve Timing Solenoid B Circuit Low Input

P1398 Variable Valve Timing Solenoid B Circuit High Input

P1400 Exhaust Gas Recirculation Valve Postion Control

P1401 Exhasut Gas Recirculation Valve Postion Circuit

P1408 Exhaust Gas Recirculation Thermister

P1409 Exhaust Gas Recirculation Valve Circuit - Read Our Article on EGR Valve Codes For Help With This Jaguar Check Engine Light Code

P1440 Purge Valve Stuck Open

P1441 ELC System 1

P1447 ELC System Closure Valve Flow

P1448 ELC System 2

P1453 Fuel Tank Pressure Relief Valve Malfunction

P1454 Evaporative Emission Control System Vacuum Test

P1475 Fan Relay (Low) Circuit

P1476 Fan Relay (High) Circuit

P1508 Idle Air Control Circuit Open

P1509 Idle Air Control Circuit Shorted

P1514 High Load Neutral/Drive Fault

P1516 Gear Change Neutral/Drive Fault

P1517 Cranking Neutral/Drive Fault

P1534 Restraint Deployment Indicator Circuit

P1565 Speed Control Command Switch Out Of Range High

P1566 Speed Control Command Switch Out Range Low

P1567 Speed Control Output Circuit - Read Our Article On Automotive Circuit Testing For Help With This Jaguar Check Engine Light Code

P1568 Speed Control Unable To Hold Speed

P1571 Brake Switch

P1582 Electronic Throttle Monitor Data Available

P1600 Loss Of Kam Power, Circuit Open

P1603 EEPROM Malfunction

P1605 Keep Alive Memory Test Failure

P1606 ECM Control Relay Output Circuit

P1607 MIL Output Circuit

P1608 Watchdog Malfunction

P1609 Internal Control Module CPU To CPU Communication Failure

P1611 Throttle Target Malfunction 1

P1612 Throttle Offset Malfunction

P1637 CAN Link ECM/ABS Control Module Circuit/Network

P1638 CAN Link ECM/INSTM Circuit/Network

P1641 Fuel Pump Primary Circuit

P1642 CAN Link Circuit

P1643 CAN Link Engine Control Module/Transmission Control Module Circuit/Network

P1646 Linear O2 Sensor Control Chip (Bank 1)

P1647 Linear O2 Sensor Control Chip (Bank 2)

P1648 Knock Sensor Input Chip

P1696 CAN Link Engine Control Module/Cruise Control Module Circuit/Network

P1697 Cruise Control Distance-Control Input Circuit

P1700 Transmission Indeterminate Failure (Failed To Neutral)

P1720 Vehicle Speed ( Meter) Circuit

P1722 Stall Speed

P1726 Engine Overspeed

P1730 Gear Control Malfunction 2,3,5

P1731 Inconsistent Gear Ratio

P1734 Gear Control Malfunction

P1745 Pressure Regulator 1

P1746 Pressure Regulator 2

P1747 Pressure Regulator 3

P1748 Pressure Regulator 5

P1758 Pressure Solenoid Control System Incorrect Current

P1775 Transmission System MIL Fault

P1776 Ignition Retard Request Duration

P1777 Ignition Retard Request Circuit - Read Our Article On Automotive Circuit Testing For Help With This Jaguar Check Engine Light Code

P1778 Transmission Reverse I/P Circuit

P1779 Load Control

P1789 Ignition Supply Malfunction

P1790 Ignition Supply Malfunction

P1791 Ignition Supply Malfunction

P1792 Ignition Supply Malfunction

P1793 Ignition Supply Malfunction

P1794 Battery Voltage Circuit

P1795 Inconsistent CAN Level

P1796 CAN Controller Circuit (Bus Off)

P1797 CAN TCM/ECM Circuit Malfunction - Read Our Article On Automotive Circuit Testing For Help With This Jaguar Check Engine Light Code

P1798 CAN TCM/INST Circuit Malfunction

P1799 CAN TCM/ABS Circuit Malfunction

P1882 Engine Coolant Level Switch Circuit Short To Ground

 

^^^^^ that list needs to be put into a file and added to the FAQ.

 

I would get the faults checked by the dealer or other shop, and not AutoZone(lol). Their "scan tool" may be "CAN" compatible, but it doesn't communicate with other control modules on the CAN network as say "IDS/SDD" would. Chances are you have a bad throttle body. But... The faults still need to be checked first.

 

My 2004 XJ8 (38,000 miles) did the same thing and I fixed it.

Here's what happened. I was going on a day trip on a Sat. and so the day before, I went to the car wash and they also did the under body wash. Saturday evening after the trip I stopped at my friend's house for a while and then headed home. After a short way I got all the symtoms that you did including the Messages. Mine did it several times and along with the P1111 (emissions stuff passed some tests) I got a P0121. A lot of people will run out and pay the bucks for a Throttle Body, but I did this first.

I removed the engine top cover ( four quick lock screws) oil cap slows you down; take it off, then put it back on. The first metal part on the engine after the MAP, which is after the air cleaner, is the Throttle Body. You will see a four wire plug connected to it. Push the lock in and pull the plug loose. Spray WD-40 onto and around the prongs that you now see. Then spray the inside of the plug to remove any moisture in it. Believe me , it gets in there. Connect and disconnect the plug several times to clean the connections. Put it back together and give her a test.
No more problems for over a month now.

 

The P0121 is not an uncommon problem with the xj, xk & s-type and I would strongly suggest checking the plugs first. Displacing the water with WD-40 was the right thing to do. My car I pulled the plug, cleaned it with CRC contact cleaned, replaced the contacts (TSB) and used Die-electric contact paste to displace any water from entering the plug again. You can read about it on my page TBoddy Hope this helps!

 

Gus,

Any luck finding the plug? I don't understand why Jag does not sell replacement plugs - seems stupid.

~V

 

The THROTTLE POSITION SENSOR is made by Denso and their products are found on other makes of cars too. If I remember right, Toyota uses either the same or similar TPS. Make a outline of your plug and hit a few Wreaking Yards and see what matches and go from there.

 

Hey Glendoramike: I did exactly as instructed and all seems good for now. Thank you very much for the suggestion.

 

I was just doing a search on my 2004 xj8 with 116,000 miles and the same problem. The car runs mint otherwise, had it since 37,000, did all maint., etc. A week ago, she starts quitting for no reason, for seemingly no reason. Was about to replace all the oxygen sensors, when I found this thread. I went out and did the WD-40 thing, and so far, so good. Thanks!

 

That same issue has happened several times on my '06. After great consternation, I discovered, much like some others here, that spraying CRC on the Mass Air sensor and into the throttle body, seems to clean off any 'gunk' that accumulates. I also spray the electric contacts with (I forget the name) the product designed to clean electric contacts.

This method resolves the issue, at least for 8 - 10 miles. It seems to me that as grime builds up, the computer gets a false readings. That may not be accurate, but certainly this solution solves the issue!

 

Oops! That's 8 - 10 thousand miles!