scoobytoro

on a 2005 WRX. Car still running fine. I have however noticed that the radiator fans keep clicking on and off when the ignition is on ( engine cold) and angine not running. Are the two linked ? Any ideas how to fix ?

TIA and Happy New Year.

Rob Day

iTrader: (78)

Hello. Im not the best to reply to this, but as you have no response yet here goes.

Firstly are you sure its not the Aircon system running with the ingnition on?

As for the Engine management light, buy an OBD reader - there about £20 and find out for yourself what the issue is with the light being on as there is litterally hundreds of reasons for it. List below of reasons:

P0031
Front oxygen (A/F) sensor heater circuit low input
P0032
Front oxygen (A/F) sensor heater circuit high input
P0037
Rear oxygen sensor heater circuit malfunction
P0038
Rear oxygen sensor heater circuit high input
P0065
Air assist injector solenoid valve malfunction
P0066
Air assist injector solenoid valve circuit low input
P0067
Air assist injector solenoid valve circuit high input
P0100
Mass Air Flow Sensor Circuit Malfunction
P0101
Mass Air Flow Sensor Circuit Range Problem
P0102
Mass Air Flow Sensor Circuit Low Input
PO103
Mass Air Flow Sensor Circuit High Input
P0105
Pressure Sensor Circuit Malfunction
P0106
Pressure Sensor Circuit Range Problem
PO107
Pressure Sensor Circuit Low Input
PO108
Pressure Sensor Circuit High Input
P0111
Intake air temperature sensor circuit range/performance problem
P0112
Intake air temperature sensor circuit low input
P0113
Intake air temperature sensor circuit high input
P0115
Engine Coolant Temperature Sensor Circuit
P0116
Engine Coolant Temp Sensor Circuit Low Input
PO117
Engine Coolant Temp Sensor Circuit Low Input
PO118
Engine Coolant Temp Sensor Circuit High Input
P0120
Throttle Position Sensor Circuit Malfunction
P0121
Throttle Position Sensor Circuit Range Problem
PO122
Throttle Position Sensor Circuit Range Problem
PO123
Throttle Position Sensor Circuit High Input
P0125
Insufficient Coolant Temperature for Closed Loop
P0128
Thermostat malfunction
P0130
Front Oxygen Sensor Circuit Malfunction
P0131
Front oxygen (A/F) sensor circuit range/performance problem (low input)
P0132
Front oxygen (A/F) sensor circuit range/performance problem (high input)
P0133
Front Oxygen Sensor Circuit Slow Response
P0135
Front Oxygen Sensor Heater Circuit Malfunction
P0136
Rear Oxygen Sensor Circuit Malfunction
P0139
Rear Oxygen Sensor Circuit Slow Response
P0141
Rear Oxygen Sensor Heater Circuit Malfunction
P0170
Fuel Trim Malfunction
P0171
Fuel trim malfunction (A/F too lean)
P0172
Fuel trim malfunction (A/F too rich)
PO181
Fuel Temperature Sensor A Range Problem
PO182
Fuel Temperature Sensor A Circuit Low Input
PO183
Fuel Temperature Sensor A Circuit High Input
P0201
Fuel Injector Circuit Malfunction - #1
P0202
Fuel Injector Circuit Malfunction - #2
P0203
Fuel Injector Circuit Malfunction - #3
P0204
Fuel Injector Circuit Malfunction - #4
P0244
Wastegate control solenoid valve malfunction (high input)
P0245
Wastegate control solenoid valve circuit low input
P0246
Wastegate control solenoid valve circuit high input
PO261
Fuel Injector Circuit Low Input - #1
PO262
Fuel Injector Circuit High Input - #1
PO264
Fuel Injector Circuit Low Input - #2
PO265
Fuel Injector Circuit High Input - #2
PO267
Fuel Injector Circuit Low Input - #3
PO268
Fuel Injector Circuit High Input - #3
PO270
Fuel Injector Circuit Low Input - #4
PO271
Fuel Injector Circuit High Input - #4
P0301
Cylinder 1 Misfire Detected
P0302
Cylinder 2 Misfire Detected
P0303
Cylinder 3 Misfire Detected
P0304
Cylinder 4 Misfire Detected
P0325
Knock Sensor Circuit Malfunction
P0327
Knock sensor circuit low input
P0328
Knock sensor circuit high input
P0335
Crankshaft Position Sensor Circuit Malfunction
PO336
Crankshaft Position Sensor Circuit Range Problem
P0340
Camshaft Position Sensor Circuit Malfunction
PO341
Camshaft Position Sensor Circuit Range Problem
P0400
Exhaust Gas Recirculation Flow Malfunction
P0403
Exhaust Gas Recirculation Circuit Malfunction
PO420
Catalyst System Efficiency Below Threshold
PO440
Evaporative Emission Control System Malfunction
P0441
Evap System Incorrect Purge Flow
P0442
Evaporative emission control system malfunction
P0443
Evap System Purge Control Valve Circuit
PO443
EVAP System Purge Control Valve Circuit Low Input
P0444
Evaporative emission control system purge control valve circuit low input
P0445
Evaporative emission control system purge control valve circuit high input
PO446
EVAP System Vent Control Low Input
P0447
Evaporative emission control system vent control low input
P0448
Evaporative emission control system vent control high input
PO451
EVAP Pressure Sensor Range Problem
PO452
EVAP Pressure Sensor Low Input
PO453
EVAP Pressure Sensor High Input
P0456
Evaporative emission control system malfunction
PO461
Fuel Level Sensor Circuit Range/Performance Problem
PO462
Fuel Level Sensor Circuit Low Input
PO463
Fuel Level Sensor Circuit High Input
P0464
Fuel level sensor intermittent input
P0480
Cooling Fan Relay 1 Circuit Low Input
P0483
Cooling Fan Function Problem
P0500
Vehicle Speed Sensor Malfunction
P0505
Idle Control System Malfunction
P0506
Idle Control System RPM Lower Than Expected
P0507
Idle Control System RPM Higher Than Expected
P0509
Idle control system circuit high input
P0512
Starter switch circuit high input
P0545
Exhaust gas temperature sensor circuit low input
P0546
Exhaust gas temperature sensor circuit high input
P0600
Serial Communication Link Malfunction
P0601
Internal Control Module Memory Checksum Error
P0604
Internal control module memory check sum error
P0703
Brake Switch Input Malfunction
P0705
Transmission Range Sensor Circuit Malfunction
P0710
Transmission Fluid Temperature Sensor Circuit
P0715
Torque Converter Turbine Speed Sensor Circuit Malfunction
P0720
Output Speed Sensor Circuit Malfunction
P0725
Engine Speed Input Circuit Malfunction
P0731
Gear 1 Incorrect Ratio
P0732
Gear 2 Incorrect Ratio
P0733
Gear 3 Incorrect Ratio
P0734
Gear 4 Incorrect Ratio
P0740
Torque Converter Clutch System Malfunction
P0741
Torque converter clutch system malfunction
P0743
Torque Converter Clutch System Electrical
P0748
Pressure Control Solenoid Electrical
P0753
Shift Solenoid A Electrical
P0758
Shift Solenoid B Electrical
P0760
Shift Solenoid C Malfunction
P0763
Shift Solenoid C Electrical
P0778
2-4 brake pressure control solenoid valve (2-4 brake duty solenoid) circuit malfunction
P0785
2-4 brake timing control solenoid valve (2-4 brake timing solenoid) circuit malfunction
P1086
Tumble generator valve #2 (LH) position sensor circuit low input
P1087
Tumble generator valve #2 (LH) position sensor circuit high input
P1088
Tumble generator valve #1 (RH) position sensor circuit low input
P1089
Tumble generator valve #1 (RH) position sensor circuit high input
P1090
Tumble generator valve #1 (RH) malfunction (stuck open)
P1091
Tumble generator valve #1 (RH) malfunction (stuck close)
P1092
Tumble generator valve #2 (LH) malfunction (stuck open)
P1093
Tumble generator valve #2 (LH) malfunction (stuck close)
P1094
Tumble generator valve circuit #1 (open circuit)
P1095
Tumble generator valve circuit #1 (over current)
P1096
Tumble generator valve circuit #2 (open circuit)
P1097
Tumble generator valve circuit #2 (over current)
P1100
Starter Switch Circuit Malfunction
P1101
Neutral Position Switch Circuit High Input (A/T)
P1101
Neutral Position Switch Circuit Malfunction (M/T)
P1102
Pressure Sources Solenoid Valve Circuit Malfunction
P1103
Pressure Sources Switching Solenoid Valve Circuit
P1104
Engine Torque Control Signal Circuit Malfunction
P1106
Engine Torque Control Signal 2 Circuit Malfunction
P1110
Atmospheric pressure sensor low input
P1111
Atmospheric pressure sensor high input
P1112
Atmospheric pressure sensor range/performance problem
P1115
Engine Torque Control Cut Signal Circuit High Input
P1116
Engine Torque Control Cut Signal Circuit Low Input
P1120
Starter Switch High Input
P1121
Neutral Position Switch Circuit High Input [MT Vehicles]
P1121
Neutral Position Switch Circuit Low Input [AT Vehicles]
P1122
Pressure Sources Switching Valve Circuit High Input
P1124
TCS Signal Circuit High Input
P1130
Front oxygen sensor circuit malfunction (open circuit)
P1131
Front oxygen sensor circuit malfunction (short circuit)
P1134
Front oxygen (A/F) sensor microcomputer problem
P1137
Front oxygen (A/F) sensor circuit range/performance problem
P1139
Front oxygen (A/F) sensor #1 heater circuit performance/range problem
P1141
Mass Air Flow Sensor Circuit High Input
P1142
Mass Air Flow Sensor Circuit Low Input
P1143
Pressure Sensor Circuit Low Input
P1144
Pressure Sensor Circuit High Input
P1146
Pressure sensor circuit range/performance problem (high input)
P1150
Front Oxygen Sensor Heater Circuit High Input
P1151
Rear Oxygen Sensor Heater Circuit High Input
P1230
Fuel pump control unit malfunction
P1244
Wastegate control solenoid valve malfunction (low input)
P1245
Wastegate control solenoid valve malfunction (fail-safe)
P1301
Fire due to increased exhaust temperature
P1312
Exhaust temperature sensor malfunction
P1325
Knock Sensor Circuit Low Input
P1400
Fuel Tank Pressure Control Solenoid Low Input
P1420
Fuel Tank Pressure Control Solenoid High Input
P1421
Exhaust Gas Recirculation Circuit High Input
P1422
EVAP Purge Control Valve Circuit High Input
P1423
EVAP Vent Control High Input
P1440
Fuel Tank Pressure Control System Low Input
P1441
Fuel Tank Pressure Control System High Input
P1442
Fuel Level Sensor Circuit Range/Perf
P1443
EVAP Control System Vent Control Function Problem
P1480
Cooling fan relay 1 circuit high input
P1500
Radiator Fan Relay 1 Circuit Malfunction
P1501
Idle Control System Malfunction (Fail Safe)
P1502
Radiator Fan Function Problem
P1507
Idle Control System Malfunction (Fail Safe)
P1510
Idle Air Control Solenoid Signal 1 Circuit Low Input
P1511
Idle Air Control Solenoid Signal 1 Circuit High Input
P1512
Idle Air Control Solenoid Signal 2 Circuit Low Input
P1513
Idle Air Control Solenoid Signal 2 Circuit High Input
P1514
Idle Air Control Solenoid Signal 3 Circuit Low Input
P1515
Idle Air Control Solenoid Signal 3 Circuit High Input
P1516
Idle Air Control Solenoid Signal 4 Circuit Low Input
P1517
Idle Air Control Solenoid Signal 4 Circuit High Input
P1518
Starter switch circuit low input
P1520
Radiator Fan Relay 1 Circuit High Input
P1540
Vehicle Speed Sensor Malfunction 2
P1544
High exhaust temperature detected
P1560
Back-Up Voltage Circuit Malfunction
P1590
Neutral position switch circuit high input
P1591
Neutral position switch circuit low input
P1592
Neutral position switch circuit (MT model)
P1594
Automatic transmission diagnosis input signal circuit malfunction
P1595
Automatic transmission diagnosis input signal circuit low input
P1596
Automatic transmission diagnosis input signal circuit high input
P1698
Engine torque control cut signal circuit low input
P1699
Engine torque control cut signal circuit high input
P1700
Throttle Position Sensor Circuit Malfunction (A/T)
P1701
Cruise Control Set Signal Circuit Malfunction (A/T)
P1702
Auto Trans Diagnosis Input Signal Circuit
P1703
Low clutch timing control solenoid valve circuit malfunction
P1704
2-4 Brake Timing Solenoid Valve Circuit Malfunction
P1705
2-4 Brake Pressure Solenoid Valve (Solenoid D) Circuit
P1711
Engine torque control signal 1 circuit malfunction
P1712
Engine torque control signal 2 circuit malfunction
P1722
Auto Trans Diagnosis Input Signal High Input
P1742
Auto Trans Diagnosis Input Signal Malfunction

Alan Jeffery

Most decent garages will have an OBD reader that will plug into the diagnostic socket, and give out a fault code. I'd say you'd be better off going to a Subaru dealer or Subaru specialist, as detailed knowledge helps a whole lot. It's possible you have a sensor failure, which may explain the fans coming on, unless you've attempted to check it by plugging in the under dash multi plugs? General rule is, if you just poodle about gently, and get it checked ASAP, you won't hurt it.

danfa

Sounds like the two green connectors under the dash on the drivers side have been connected together, if they have disconnect them and you should be ok.

Rob Day

iTrader: (78)

Is this related to the subject thread .

danfa

What do you mean by that????

Rob Day

iTrader: (78)

Sorry I didnt mean for it to come across rude. I just couldnt imagine that this would be possible .

Rob

scoobytoro

Danfa go to the top of the class. All sorted. Cheers .

danfa

no probs, I had same problem a while back on mine connected them together and forgot to disconnnect them, panicked and then remembered. glad I could help. UK 300 prodrive......it is possible!! lol

Rob Day

iTrader: (78)

Excellent - Sorry mate, I stand completly corrected and embarrased!!

danfa