Diagnostic Codes 4 Cyl Complete
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G - TESTS W/CODES - 4-CYL Article Text 1993 Mazda MX-3 For NONE Copyright ' 1998 Mitchell Repair Information Company, LLC Thursday, March 03, 2005 10:45AM ARTICLE BEGINNING 1993 ENGINE PERFORMANCE Self-Diagnostics - MX-3 1.6L, Protege & 323 MX-3 1.6L, Protege & 323 INTRODUCTION If no faults were found while performing F - BASIC TESTING, proceed with self-diagnostics. If no fault codes or only pass codes are present after entering self-diagnostics, proceed to appropriate H - TEST W/O CODES article for diagnosis by symptom (i.e., ROUGH IDLE, NO START, etc.). SELF-DIAGNOSTIC SYSTEM Hard Failures Hard failures cause malfunction indicator light (CHECK ENGINE) to illuminate and remain on until problem is repaired. If light comes on and remains on (light may flash) during vehicle operation, cause of malfunction must be determined using diagnostic (code) charts. See CODE CHARTS. If a sensor fails, control unit will use a substitute value in its calculations to continue engine operation. In this condition, commonly known as limp-in mode, the vehicle runs but driveability will not be optimum. Intermittent Failures Intermittent failures may cause CHECK ENGINE light to flicker or illuminate and go out after the intermittent fault goes away. However, the corresponding trouble code will be retained in ECU memory. If related fault does not reoccur within a certain time frame, related trouble code will be erased from ECU memory. Intermittent failures may be caused by a sensor, connector or wiring related problems. See INTERMITTENTS in H - TESTS W/O CODES article. RETRIEVING CODES Accessing Trouble Codes 1) Using jumper wire, connect self-diagnostic connector terminals TEN and GND. See Fig. 1. Connector is located at back of left front wheelwell. 2) With ignition on and engine stopped, observe malfunction indicator light (CHECK ENGINE). Note trouble codes. Check TROUBLE CODE IDENTIFICATION chart for possible cause. If light remains on continuously, MIL circuit is grounded or ECU is defective. If no codes are found, go to J - PIN VOLTAGE CHARTS article. Fig. 1: Locating Self-Diagnostic Connector Courtesy of Mazda Motors Corp. AFTER-REPAIR PROCEDURE
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Transcript of Diagnostic Codes 4 Cyl Complete
G - TESTS W/CODES - 4-CYLArticle Text
1993 Mazda MX-3For NONE
Copyright © 1998 Mitchell Repair Information Company, LLCThursday, March 03, 2005 10:45AM
ARTICLE BEGINNING1993 ENGINE PERFORMANCESelf-Diagnostics - MX-3 1.6L, Protege & 323
MX-3 1.6L, Protege & 323
INTRODUCTION If no faults were found while performing F - BASIC TESTING,proceed with self-diagnostics. If no fault codes or only pass codesare present after entering self-diagnostics, proceed to appropriateH - TEST W/O CODES article for diagnosis by symptom (i.e., ROUGH IDLE,NO START, etc.).
SELF-DIAGNOSTIC SYSTEMHard Failures
Hard failures cause malfunction indicator light (CHECKENGINE) to illuminate and remain on until problem is repaired. Iflight comes on and remains on (light may flash) during vehicleoperation, cause of malfunction must be determined using diagnostic(code) charts. See CODE CHARTS. If a sensor fails, control unit willuse a substitute value in its calculations to continue engineoperation. In this condition, commonly known as limp-in mode, thevehicle runs but driveability will not be optimum.
Intermittent Failures Intermittent failures may cause CHECK ENGINE light to flickeror illuminate and go out after the intermittent fault goes away.However, the corresponding trouble code will be retained in ECUmemory. If related fault does not reoccur within a certain time frame,related trouble code will be erased from ECU memory. Intermittentfailures may be caused by a sensor, connector or wiring relatedproblems. See INTERMITTENTS in H - TESTS W/O CODES article.
RETRIEVING CODESAccessing Trouble Codes
1) Using jumper wire, connect self-diagnostic connectorterminals TEN and GND. See Fig. 1. Connector is located at back ofleft front wheelwell. 2) With ignition on and engine stopped, observe malfunctionindicator light (CHECK ENGINE). Note trouble codes. Check TROUBLE CODEIDENTIFICATION chart for possible cause. If light remains oncontinuously, MIL circuit is grounded or ECU is defective. If no codesare found, go to J - PIN VOLTAGE CHARTS article.
Fig. 1: Locating Self-Diagnostic ConnectorCourtesy of Mazda Motors Corp.
AFTER-REPAIR PROCEDURE
G - TESTS W/CODES - 4-CYLArticle Text (p. 2)1993 Mazda MX-3For NONE
After indicated service or replacement is performed, clearcodes. See CLEARING CODES. Recheck PCME memory. No codes should bepresent. If codes are present, see appropriate trouble code chartunder CODE CHARTS to repair vehicle.
CLEARING CODESClearing Trouble Codes
1) Disconnect negative battery cable. Depress brake pedal forat least 5 seconds. Reconnect battery cable. 2) Ground test connector with jumper wire. Turn ignition on,but DO NOT start engine for 6 seconds. Start and run engine at 2000RPM for 2 minutes. Verify no codes are displayed.
CODE CHARTSNOTE: See J - PIN VOLTAGE CHARTS article to identify ECU connector terminals.
NOTE: Trouble Codes No. 6, 12, 55, 60, 61, 62 and 63 are automatic transmission related problems. If codes are present, see appropriate TRANSMISSION SERVICE & REPAIR article.
TROUBLE CODE IDENTIFICATION
G - TESTS W/CODES - 4-CYLArticle Text (p. 3)1993 Mazda MX-3For NONE Copyright © 1998 Mitchell Repair Information Company, LLC
Fig. 2: Trouble Code Identification ChartCourtesy of Mazda Motors Corp.
G - TESTS W/CODES - 4-CYLArticle Text (p. 4)1993 Mazda MX-3For NONE Copyright © 1998 Mitchell Repair Information Company, LLC
Fig. 3: Trouble Code Identification Chart (Cont.)Courtesy of Mazda Motors Corp.
TROUBLE CODE NO. 02 (NE SIGNAL - DISTRIBUTOR)
G - TESTS W/CODES - 4-CYLArticle Text (p. 5)1993 Mazda MX-3For NONE Copyright © 1998 Mitchell Repair Information Company, LLC
Fig. 4: Trouble Code No. 02 (Diagnostic Flowchart)Courtesy of Mazda Motors Corp.
Fig. 5: Trouble Code No. 02 (Schematic - CA B6 & MTX)Courtesy of Mazda Motors Corp.
G - TESTS W/CODES - 4-CYLArticle Text (p. 6)1993 Mazda MX-3For NONE Copyright © 1998 Mitchell Repair Information Company, LLC
Fig. 6: Trouble Code No. 02 (Schematic - ATX Except CA B6)Courtesy of Mazda Motors Corp.
TROUBLE CODE NO. 03 (G SIGNAL - DISTRIBUTOR)
Fig. 7: Trouble Code No. 03 (Diagnostic Flowchart)Courtesy Of Mazda Motors Corp.
G - TESTS W/CODES - 4-CYLArticle Text (p. 7)1993 Mazda MX-3For NONE Copyright © 1998 Mitchell Repair Information Company, LLC
Fig. 8: Trouble Code No. 03 (Schematic - CA B6 & MTX)Courtesy Of Mazda Motors Corp.
Fig. 9: Trouble Code No. 03 (Schematic - ATX Except CA)Courtesy Of Mazda Motors Corp.
TROUBLE CODE NO. 08 (AIRFLOW METER)
Fig. 10: Trouble Code No. 08 (Diagnostic Flowchart)Courtesy of Mazda Motors Corp.
G - TESTS W/CODES - 4-CYLArticle Text (p. 8)1993 Mazda MX-3For NONE
Fig. 11: Trouble Code No. 08 (Schematic - CA B6 & MTX)Courtesy of Mazda Motors Corp.
Fig. 12: Trouble Code No. 08 (Schematic - ATX Except CA)Courtesy of Mazda Motors Corp.
TROUBLE CODE NO. 09 (COOLANT THERMOSENSOR)
G - TESTS W/CODES - 4-CYLArticle Text (p. 9)1993 Mazda MX-3For NONE Copyright © 1998 Mitchell Repair Information Company, LLC
Fig. 13: Trouble Code No. 09 (Diagnostic Flowchart)Courtesy of Mazda Motors Corp.
Fig. 14: Trouble Code No. 09 (Schematic - CA B6 & MTX)Courtesy of Mazda Motors Corp.
G - TESTS W/CODES - 4-CYLArticle Text (p. 10)1993 Mazda MX-3For NONE Copyright © 1998 Mitchell Repair Information Company, LLC
Fig. 15: Trouble Code No. 09 (Schematic - ATX Except CA)Courtesy of Mazda Motors Corp.
TROUBLE CODE NO. 10 (INTAKE AIR THERMOSENSOR)
Fig. 16: Trouble Code No. 09 (Diagnostic Flowchart)Courtesy of Mazda Motors Corp.
G - TESTS W/CODES - 4-CYLArticle Text (p. 11)1993 Mazda MX-3For NONE Copyright © 1998 Mitchell Repair Information Company, LLC
Fig. 17: Trouble Code No. 09 (Schematic - CA B6 & MTX)Courtesy of Mazda Motors Corp.
Fig. 18: Trouble Code No. 09 (Schematic - ATX Except CA)Courtesy of Mazda Motors Corp.
TROUBLE CODE NO. 12 (THROTTLE SENSOR)
G - TESTS W/CODES - 4-CYLArticle Text (p. 12)1993 Mazda MX-3For NONE Copyright © 1998 Mitchell Repair Information Company, LLC
Fig. 19: Trouble Code No. 12 (Diagnostic Flowchart)Courtesy of Mazda Motors Corp.
Fig. 20: Trouble Code No. 12 (Schematic - CA B6 & MTX)Courtesy of Mazda Motors Corp.
G - TESTS W/CODES - 4-CYLArticle Text (p. 13)1993 Mazda MX-3For NONE Copyright © 1998 Mitchell Repair Information Company, LLC
Fig. 21: Trouble Code No. 03 (Schematic - All Others)Courtesy of Mazda Motors Corp.
TROUBLE CODE NO. 14 (ATMOSPHERIC PRESSURE SENSOR)* Replace ECU
TROUBLE CODE NO. 15 (OXYGEN SENSOR)
Fig. 22: Trouble Code No. 15 (Diagnostic Flowchart)Courtesy of Mazda Motors Corp.
G - TESTS W/CODES - 4-CYLArticle Text (p. 14)1993 Mazda MX-3For NONE Copyright © 1998 Mitchell Repair Information Company, LLC
Fig. 23: Trouble Code No. 15 (Schematic - CA B6 & MTX)Courtesy of Mazda Motors Corp.
Fig. 24: Trouble Code No. 15 (Schematic - ATX Except CA)Courtesy of Mazda Motors Corp.
TROUBLE CODE NO. 17 (OXYGEN SENSOR - INACCURATE)
G - TESTS W/CODES - 4-CYLArticle Text (p. 15)1993 Mazda MX-3For NONE Copyright © 1998 Mitchell Repair Information Company, LLC
Fig. 25: Trouble Code No. 17 (Diagnostic Flowchart)Courtesy of Mazda Motors Corp.
TROUBLE CODE NO. 25 (PRESSURE REGULATOR SOLENOID VALVE)
G - TESTS W/CODES - 4-CYLArticle Text (p. 16)1993 Mazda MX-3For NONE Copyright © 1998 Mitchell Repair Information Company, LLC
Fig. 26: Trouble Code No. 25 (Diagnostic Flowchart)Courtesy of Mazda Motors Corp.
TROUBLE CODE NO. 26 (PURGE CONTROL SOLENOID VALVE)
Fig. 27: Trouble Code No. 26 (Diagnostic Flowchart)Courtesy of Mazda Motors Corp.
Fig. 28: Trouble Code No. 26 (Schematic - CA B6 & MTX)Courtesy of Mazda Motors Corp.
G - TESTS W/CODES - 4-CYLArticle Text (p. 17)1993 Mazda MX-3For NONE Copyright © 1998 Mitchell Repair Information Company, LLC
Fig. 29: Trouble Code No. 26 (Schematic - ATX Except CA)Courtesy of Mazda Motors Corp.
TROUBLE CODE NO. 34 (IDLE SPEED CONTROL)
Fig. 30: Trouble Code No. 34 (Diagnostic Flowchart)Courtesy of Mazda Motors Corp.
TROUBLE CODE NO. 41 (VARIABLE INERTIA CHARGING SYSTEM - DOHC)
Fig. 31: Trouble Code No. 41 (Diagnostic Flowchart)Courtesy of Mazda Motors Corp.
SUMMARY
G - TESTS W/CODES - 4-CYLArticle Text (p. 18)1993 Mazda MX-3For NONE Copyright © 1998 Mitchell Repair Information Company, LLC
If no hard fault codes (or only pass codes) are present,driveability symptoms exist or intermittent codes exist, proceed tothe H - TESTS W/O CODES article for diagnosis by symptom (i.e. ROUGHIDLE, NO START, etc.) or intermittent diagnostic procedures.
END OF ARTICLE
