LC/LR4Life said:
Hi guys, I am getting ready to buy my own OBDII computer to troubleshoot my problematic P38 Range Rover. Does anyone have a list of what the codes mean when the numbers pop up? I haven't looked at a computer yet, but I think I remember someone saying it just tells you codes, and who knows what the codes mean? I figure someone here has em on file. I'm going computer shopping today. I am tired of the P38, but need to keep it going because it's my wifes main vehicle. Seems every time I repair or replace something on it, it's not a month goes by it has another problem.
Several code readers will include a software disc which will allow you to connect the code reader to your PC and decipher the codes, you can also use google.
For a list of codes see
http://rangerovers.net/forum/viewtopic.php?f=3&t=26233&p=200420&hilit=codes#p200420
The Standard OBDII Scan Codes.
Special *Codes* are used to identify the 4 Oxygen Sensors
A= Bank A of the engine. Cylinder #1 is located on Engine Bank A
B= Bank B of the engine.
U= Upstream of the Catalytic Converter
D= Downstream of the Catalytic Converter
Example:
A D = Oxygen Sensor Engine Bank A, Downstream of the Catalytic Converter
Trouble Code Chart
DTC Fault Description
P0101 Mass Air Flow Sensor Signal Error Fault
P0102 Mass Air Flow Sensor Low out of Range Fault
P0103 Mass Air Flow Sensor High out of Range Fault
P0111 Air Temperature Signal Error Fault
P0112 Air Temperature Low out of Range Fault
P0113 Air Temperature High out of Range Fault
P0116 Engine Coolant Temperature Sensor Falling Temp Fault
P0117 Engine Coolant Temperature Sensor Low out of Range Fault
P0118 Engine Coolant Temperature Sensor High out of Range Fault
P0121 Throttle Position Sensor Output Signal Error Fault
P0122 Throttle Position Sensor Low out of Range Fault
P0123 Throttle Position Sensor High out of Range Fault
P0125 Engine Coolant Temp Sensor Warm Up Fault
P0130 Oxygen Sensor Cycle Fault *codes* A U
P0131 Oxygen Sensor Low Voltage *codes* A U
P0132 Oxygen Sensor High Voltage *codes* A U
P0133 Oxygen Sensor Slow response *codes* A U
P0136 Oxygen Sensor Cycle Fault *codes* A D
P0137 Oxygen Sensor Low Voltage *codes* A D
P0138 Oxygen Sensor High Voltage *codes* A D
P0139 Oxygen Sensor Slow response *codes* A D
P0150 Oxygen Sensor Cycle Fault *codes* B U
P0151 Oxygen Sensor Low Voltage *codes* B U
P0152 Oxygen Sensor High Voltage *codes* B U
P0153 Oxygen Sensor Slow response *codes* B U
P0156 Oxygen Sensor Cycle Fault *codes* B D
P0157 Oxygen Sensor Low Voltage *codes* B D
P0158 Oxygen Sensor High Voltage *codes* B D
P0159 Oxygen Sensor Slow response *codes* B D
P0171 Oxygen Sensor System Too Lean Fault Bank A
P0172 Oxygen Sensor System Too Rich Fault Bank A
P0174 Oxygen Sensor System Too Lean Fault Bank B
P0175 Oxygen Sensor System Too Rich Fault Bank B
P0181 Fuel Temperature Sensor Signal Error Fault
P0182 Fuel Temperature Sensor Low out of Range Fault
P0183 Fuel Temperature Sensor High out of Range Fault
P0201 Injector 1 Circuit Fault
P0202 Injector 2 Circuit Fault
P0203 Injector 3 Circuit Fault
P0204 Injector 4 Circuit Fault
P0205 Injector 5 Circuit Fault
P0206 Injector 6 Circuit Fault
P0207 Injector 7 Circuit Fault
P0208 Injector 8 Circuit Fault
P0300 Misfire on Multiple Cylinder
P0301 Misfire on Cylinder 1
P0302 Misfire on Cylinder 2
P0303 Misfire on Cylinder 3
P0304 Misfire on Cylinder 4
P0305 Misfire on Cylinder 5
P0306 Misfire on Cylinder 6
P0307 Misfire on Cylinder 7
P0308 Misfire on Cylinder 8
P0326 Continuous Knock Fault Fault Bank A
P0327 Background Noise Low Fault Bank A
P0328 Background Noise High Fault Bank A
P0331 Continuous Knock Fault Fault Bank B
P0332 Background Noise Low Fault Bank B
P0333 Background Noise High Fault Bank B
P0335 Crankshaft Position Sensor Signal Error Fault
P0336 Crankshaft Position Sensor Out of Range Fault
P0340 Camshaft Position Sensor Signal Error Fault
P0420 Catalyst Efficiency Low Fault Bank A
P0430 Catalyst Efficiency Low Fault Bank B
P0441 Evap. Purge Valve Incorrect Flow Fault
P0442 Evap System Small Leak Detected Fault
P0443 Evap. Purge Valve Open or Short Circuit Fault
P0451 Fuel Tank Pressure Sensor Signal Error Fault
P0452 Fuel Tank Pressure Sensor Low Out of Range Fault
P0453 Fuel Tank Pressure Sensor High Out of Range Fault
P0461 Fuel Tank Level Measurement Not Valid Fault
P0500 Vehicle Speed Sensor Signal Error Fault
P0506 Idle Speed Control Engine Speed Low Fault
P0507 Idle Speed Control Engine Speed High Fault
P0560 Battery Voltage Below minimum Fault
P0562 Measurement Circuit OK Battery Voltage Low Fault
P0563 Battery Voltage Above Maximum Fault
P0605 ECM Self Test Fault
P1130 Oxygen Sensor Fuel Trim at Limit *codes* A U
P1131 Oxygen Sensor Lean *codes* A U
P1132 Oxygen Sensor Rich *codes* A U
P1137 Oxygen Sensor Lean *codes* A D
P1138 Oxygen Sensor Rich *codes* A D
P1150 Oxygen Sensor Fuel Trim at Limit *codes* B U
P1151 Oxygen Sensor Lean *codes* B U
P1152 Oxygen Sensor Rich *codes* B U
P1157 Oxygen Sensor Lean *codes* B D
P1158 Oxygen Sensor Rich *codes* B D
P1171 Oxygen Sensor System too Lean Fault Banks A & B
P1172 Oxygen Sensor System too Rich Fault Banks A & B
P1176 Maximum Positive FMFR Correction Fault
P1177 Maximum Negative FMFR Correction Fault
P1178 Maximum Positive AMFR Correction Fault
P1179 Maximum Negative AMFR Correction Fault
P1185 Oxygen Sensor Heater Circuit Open Upstream
P1186 Oxygen Sensor Heater Circuit Short Upstream
P1187 Oxygen Sensor Heater Circuit Short Upstream
P1188 Oxygen Sensor Heater High Resistance Upstream
P1189 Oxygen Sensor Heater Type 1 Low Resistance Upstream
P1190 Oxygen Sensor Heater Type 2 Low Resistance Upstream
P1191 Oxygen Sensor Heater Circuit Open Downstream
P1192 Oxygen Sensor Heater Circuit Short Downstream
P1193 Oxygen Sensor Heater Circuit Open Downstream
P1194 Oxygen Sensor Heater High Resistance Downstream
P1195 Oxygen Sensor Heater Type 1 Low Resistance Downstream
P1196 Oxygen Sensor Heater Type 2 Low Resistance Downstream
P1199 Fuel Level Sensor Circuit Fault
P1201 Injector 1 Open Circuit or Ground Short Fault
P1202 Injector 2 Open Circuit or Ground Short Fault
P1203 Injector 3 Open Circuit or Ground Short Fault
P1204 Injector 4 Open Circuit or Ground Short Fault
P1205 Injector 5 Open Circuit or Ground Short Fault
P1206 Injector 6 Open Circuit or Ground Short Fault
P1207 Injector 7 Open Circuit or Ground Short Fault
P1208 Injector 8 Open Circuit or Ground Short Fault
P1313 Misfire Catalyst Damage Fault Bank A
P1314 Misfire Catalyst Damage Fault Bank B
P1315 Misfire Persistent Fault
P1316 Misfire Excessive Emissions Fault
P1317 ABS Rough Road Line Low Fault
P1318 ABS Rough Road Line High Fault
P1361 No Ignition Coil Activation Fault Coil 1
P1362 No Ignition Coil Activation Fault Coil 2
P1363 No Ignition Coil Activation Fault Coil 3
P1364 No Ignition Coil Activation Fault Coil 4
P1371 Early Ignition Coil Activation Fault Coil 1
P1372 Early Ignition Coil Activation Fault Coil 2
P1373 Early Ignition Coil Activation Fault Coil 3
P1374 Early Ignition Coil Activation Fault Coil 4
P1440 Evap System Purge Valve Stuck Open Fault
P1441 Evap System Purge Valve Flow 1 Fault
P1442 Evap System Purge Valve Blocked Fault
P1447 Evap System Purge Valve Open or Short Circuit Fault
P1448 Evap System Purge Valve Flow 2 Fault
P1508 Idle Speed Control Open Circuit Fault
P1509 Idle Speed Control Short Circuit Fault
P1514 Neutral Drive Load Fault
P1516 Neutral Drive Gear Change Fault
P1517 Neutral Drive Cranking Fault
P1607 Malfunction Indicator Lamp Short Circuit Fault
P1608 Malfunction Indicator Lamp Open Circuit Fault
P1620 Reprogramming Code Learn Fault
P1621 Serial Data Link Dead Fault
P1622 Repeated Wrong ECM Security Code Fault
P1623 ECM Security Code Fault
P1701 Transfer Box Line Fault
P1703 Transfer Box Line Open Circuit Fault
P1708 Transfer Box Line Short Circuit Fault
P1775 Gearbox Fault
P1776 Gearbox Ignition Retard Request Timeout Fault
P1777 Gearbox Ignition Retard Request Line Fault
Special Codes
As well as the standard codes each manufacturer has their own specific codes, and a unique header code/name from the ISO.
Rover specific header code names are 502 - 511
I don't have any information about usage on vehicles
Relevant codes could be
Rover 502 - 511
Lucas 850 - 860 CBS/ABS
862 - 863 Diesel fuel engine control
877 ditto
939 ditto
Wabco 121 - 125 Breaking systems
SAGEM ? 795 - 799 Engine management
?GEMS? 837 Chassis
880 On board electronics
Hope this helps, and maybe then you can stop bashing the P38, most issues and how to fix them are well documented.
The factory workshop manual and Electrical manual are essential.
With most LR's maintenance is key, with the P38 especially.
Couple of points which may help
P38's are very sensitive to battery voltage and condition.
The BeCM does not like to get wet (carpet steam cleaning and leaking heater O rings being the usual culprits).
The fuse box located next to the radiator header tank can fail and produce some really interesting electrical faults. It is a quick easy and some what inexpensive (for a P38) fix.
