GD(H4DOTC)-101
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
Combination valve one side closed pulse diagnosis
Perform close stuck diagnosis of the LH combination valve using delivery pipe pressure pulse when the RH
combination valve is closed.
Calculate the voltage pulse of the pump delivery pipe pressure when the RH combination valve is closed and
the LH combination valve is open. The calculation of delivery pipe pressure should be large when the LH
combination valve is open. Judge that the LH combination valve is close stuck if the calculation is small.
•
Abnormality Judgement
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Time Needed for Diagnosis:
4000 ms + 992 ms + 992 ms + 992 ms
Malfunction Indicator Light Illumination:
Illuminates when malfunction occurs in 2 continuous driving cy-
cles.
•
Normality Judgement
Judge as OK and clear the NG if the continuous time while the following conditions are established is more
than the predetermined time.
Time Needed for Diagnosis:
4000 ms + 992 ms + 992 ms + 992 ms
Perform close stuck diagnosis of the RH combination valve using delivery pipe pressure pulse when the LH
combination valve is closed.
Calculate the voltage pulse of the pump delivery pipe pressure when the LH combination valve is closed and
the RH combination valve is open. The calculation of delivery pipe pressure should be large when the RH
combination valve is open. Judge that the RH combination valve is close stuck if the calculation is small.
•
Abnormality Judgement
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Time Needed for Diagnosis:
4000 ms + 992 ms + 992 ms + 992 ms
Malfunction Indicator Light Illumination:
Illuminates when malfunction occurs in 2 continuous driving cy-
cles.
•
Normality Judgement
Judge as OK and clear the NG if the continuous time while the following conditions are established is more
than the predetermined time.
Time Needed for Diagnosis:
4000 ms + 992 ms + 992 ms + 992 ms
Judgement Value
Malfunction Criteria
Threshold Value
DTC
Pulse calculated value when the RH
combination valve is closed
< Value of Map 1
P2443
Judgement Value
Malfunction Criteria
Threshold Value
DTC
Pulse calculated value when the RH
combination valve is closed
t
Value of Map 1
P2443
Judgement Value
Malfunction Criteria
Threshold Value
DTC
Pulse calculated value when the LH
combination valve is closed
< Value of Map 2
P2441
Judgement Value
Malfunction Criteria
Threshold Value
DTC
Pulse calculated value when the LH
combination valve is closed
t
Value from Map 2
P2441
Summary of Contents for 2009 IMPREZA
Page 18: ...PC 4 Precaution PRECAUTION...
Page 21: ...NT 4 Note NOTE Lift Rigid rack A Attachment NT 00241 A A Attachment NT 00242 A...
Page 23: ...NT 6 Note NOTE A Front B Rear 1 Front crossmember 2 Rear differential 1 2 A B NT 00210...
Page 66: ...PI 22 Pre delivery Inspection PRE DELIVERY INSPECTION...
Page 112: ...PM 48 A C Filter PERIODIC MAINTENANCE SERVICES...
Page 219: ...IN H4SO 10 Resonator Chamber INTAKE INDUCTION...
Page 324: ...ME H4SO 106 Engine Noise MECHANICAL...
Page 388: ...SP H4SO 6 Accelerator Pedal SPEED CONTROL SYSTEMS...
Page 395: ...IG H4SO 8 Spark Plug Cord IGNITION...
Page 418: ...SC H4SO 24 Battery STARTING CHARGING SYSTEMS...
Page 725: ...EN H4SO diag 308 General Diagnostic Table ENGINE DIAGNOSTICS...
Page 926: ...GD H4SO 202 Diagnostic Trouble Code DTC Detecting Criteria GENERAL DESCRIPTION...
Page 1181: ...EX H4DOTC 16 Muffler EXHAUST...
Page 1212: ...CO H4DOTC 32 Engine Cooling System Trouble in General COOLING...
Page 1221: ...IG H4DOTC 8 Ignition Coil IGNITION...
Page 1818: ...GD H4DOTC 230 Diagnostic Trouble Code DTC Detecting Criteria GENERAL DESCRIPTION...
Page 2154: ...5MT 82 General Diagnostic Table MANUAL TRANSMISSION AND DIFFERENTIAL...
Page 2227: ...RS 20 General Diagnostic Table REAR SUSPENSION...
Page 2364: ...DS 36 General Diagnostic Table DRIVE SHAFT SYSTEM...
Page 2615: ...BR 48 General Diagnostic Table BRAKE...
Page 2624: ...PB 10 General Diagnostic Table PARKING BRAKE...
Page 2681: ...PS 58 General Diagnostic Table POWER ASSISTED SYSTEM POWER STEERING...
Page 2730: ...AC 50 General Diagnostic Table HVAC SYSTEM HEATER VENTILATOR AND A C...
Page 2961: ...SB 22 Rear Seat Belt SEAT BELT SYSTEM...
Page 3035: ...COM 6 Horn Switch COMMUNICATION SYSTEM...
Page 3070: ...GW 36 Wiper Deicer System GLASS WINDOWS MIRRORS...
Page 3092: ...IDI 22 Clock INSTRUMENTATION DRIVER INFO...
Page 3158: ...SL 54 Immobilizer Antenna SECURITY AND LOCKS...
Page 3167: ...SR 10 Sunshade SUNROOF T TOP CONVERTIBLE TOP SUNROOF...
Page 3240: ...EI 74 Ornament EXTERIOR INTERIOR TRIM...
Page 3286: ...CC 12 Neutral Position Switch CRUISE CONTROL SYSTEM...
Page 3311: ...CC diag 26 Diagnostic Procedure with Cancel Code CRUISE CONTROL SYSTEM DIAGNOSTICS...
Page 3421: ...LAN diag 88 General Diagnostic Table LAN SYSTEM DIAGNOSTICS...
Page 3486: ...WI 67 Remote Engine Start System WIRING SYSTEM...