Home/Mazda/Protege/Mazda Protege BH (1994-1999)/Repair manual/Testing & Diagnostics/Engine Controls - Tests W/codes - 1.8L: Diagnosis
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Engine Controls - Tests W/codes - 1.8L: Diagnosis Mazda Protege BH

Testing & Diagnostics 40 illustrations ~241 words

Diagnostic Trouble Code Access

  1. Use New Generation Star (NGS) Tool (49 T088 0A0) to retrieve diagnostic trouble codes. Connect NGS tool to data link connector 2. (Scheme 52) Refer to operation manual for proper operation of NGS tool. Select DIAGNOSTIC TEST MODE function on tool and press trigger.
  2. Note diagnostic trouble codes. Check «DIAGNOSTIC TROUBLE CODE IDENTIFICATION»(ref-18618-S05338010242000123000000) for possible cause. If more than one code is present, codes will be displayed in numerical order. Clear codes after repairs are complete. See «CLEARING CODES»(ref-18618-S33588285682000123000000). If NO CODES RECEIVED/SYSTEM PASSED is displayed, all systems monitored are okay. If LINK MONITOR ERROR is displayed, check NGS tool connection for proper connection.

Scheme 52

Scheme 52

DIAGNOSTIC TROUBLE CODE CHARTS

Note. See PIN VOLTAGE CHART S article to identify PCM connector terminals.

Note. DTCs P0705, P0710, P0715, P0731, P0732, P0733, P0734, P0740, P0750, P0755, P0760 and P1743 are automatic transaxle related problems. If codes are present, see appropriate TRANSMISSION SERVICING article.

Scheme 53

Scheme 53: DTC P0100: MASS AIR FLOW/VOLUME AIR FLOW CKT MALFUNCTION

Scheme 54

Scheme 54: DTC P0110: INTAKE AIR TEMPERATURE CKT MALFUNCTION

Scheme 55

Scheme 55: DTC P0115: ENGINE COOLANT TEMPERATURE CKT MALFUNCTION

Scheme 56

Scheme 56: DTC P0120: THROTTLE POSITION CKT MALFUNCTION

Scheme 57

Scheme 57: DTC P0125: EXCESSIVE TIME TO ENTER CLOSED LOOP FUEL CONTROL

Scheme 58

Scheme 58: DTC P0130: OXYGEN SENSOR CKT MALFUNCTION

Scheme 59

Scheme 59: DTC P0134: OXYGEN SENSOR CKT NO ACTIVITY DETECTED

Scheme 60

Scheme 60: DTC P0135: OXYGEN SENSOR HEATER CKT MALFUNCTION

Scheme 61

Scheme 61: DTC P0140: OXYGEN SENSOR CKT NO ACTIVITY DETECTED

Scheme 62

Scheme 62: DTC P0170: FUEL TRIM MALFUNCTION

Scheme 63

Scheme 63: DTC P0300: RANDOM MISFIRE DETECTED

Scheme 64

Scheme 64: DTC P0301: CYLINDER NO. 1 MISFIRE DETECTED

Scheme 65

Scheme 65: DTC P0302: CYLINDER NO. 2 MISFIRE DETECTED

Scheme 66

Scheme 66: DTC P0303: CYLINDER NO. 3 MISFIRE DETECTED

Scheme 67

Scheme 67: DTC P0304: CYLINDER NO. 4 MISFIRE DETECTED

Scheme 68

Scheme 68: DTC P0335: CRANKSHAFT POSITION SENSOR CKT MALFUNCTION

Scheme 69

Scheme 69: DTC P0340: CAMSHAFT POSITION SENSOR CKT MALFUNCTION

Scheme 70

Scheme 70: DTC P0400: EXHAUST GAS RECIRCULATION FLOW MALFUNCTION

Scheme 71

Scheme 71: DTC P0420: CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD

Scheme 72

Scheme 72: DTC P0440: EVAPORATIVE EMISSION CONTROL SYSTEM MALFUNCTION

Scheme 73

Scheme 73: DTC P0443: EVAP SYSTEM PURGE CONTROL VALVE CKT MALFUNCTION

Scheme 74

Scheme 74: DTC P0450: EVAP SYSTEM PRESSURE SENSOR MALFUNCTION

Scheme 75

Scheme 75: DTC P0500: VEHICLE SPEED SENSOR MALFUNCTION

Scheme 76

Scheme 76: DTC P0505: IDLE CONTROL SYSTEM MALFUNCTION

Scheme 77

Scheme 77: DTC P0703: BRAKE SWITCH INPUT MALFUNCTION

Scheme 78

Scheme 78: DTC P1000: READINESS FUNCTION CODE

Scheme 79

Scheme 79: DTC P1170: FRONT HEATED OXYGEN SENSOR - INVERSION

Scheme 80

Scheme 80: DTC P1195: EGR BOOST SENSOR

Scheme 81

Scheme 81: DTC P1250: PRC SOLENOID VALVE

Scheme 82

Scheme 82: DTC P1402: EGR VALVE POSITION SENSOR

Scheme 83

Scheme 83: DTC P1449: CANISTER DRAIN CUT VALVE

Scheme 84

Scheme 84: DTC P1455: FUEL GAUGE SENDER UNIT

Scheme 85

Scheme 85: DTC P1485: EGR VACUUM SOLENOID VALVE

Scheme 86

Scheme 86: DTC P1486: EGR VENT SOLENOID VALVE

Scheme 87

Scheme 87: DTC P1487: EGR BOOST SENSOR SOLENOID VALVE

Scheme 88

Scheme 88: DTC P1523: VICS SOLENOID VALVE

Scheme 89

Scheme 89: DTC P1608: PCM MALFUNCTION

Scheme 90

Scheme 90: DTC P1794: BATTERY

Scheme 91

Scheme 91: DTC P1797: NO P OR N RANGE OR NEUTRAL/CLUTCH SWITCH SIGNAL