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TROUBLESHOOTING MULTIPORT FUEL INJECTION (MPI) <4A9> 13A-206 PROBABLE CAUSES • Failed accelerator pedal position sensor • Open/short circuit in accelerator pedal position sensor circuit or loose connector contact • Failed engine-ECU <M/T> or engine-CVT-ECU <CVT> DIAGNOSIS PROCEDURE STEP 1. M.U.T.-III data list • Refer to Data List Reference Table . a. Item 78: Accelerator pedal position sensor (main) Q: Is the check result normal? YES : Intermittent malfunction (Refer to GROUP 00 − How to Use Troubleshooting/Inspection Service Points − How to Cope with Intermittent Malfunctions ). NO : Go to Step 2 . STEP 2. Connector check: B-26 accelerator pedal Q: Is the check result normal? YES : Go to Step 3 . NO : Repair or replace the connector. STEP 3. Perform resistance measurement at B-26 • Disconnect connector, and measure at harness side. • Resistance between terminal No. 2 and earth. OK: Continuity (2 Ω or less) Q: Is the check result normal? YES : Go to Step 7 . NO : Go to Step 4 . STEP 4. Connector check: A-08 engine-ECU Q: Is the check result normal? YES : Go to Step 5 . NO : Repair or replace the connector. AK203205 1 6 5 4 3 2 AD Connector: B-26 B-26 (B) B-26 Harness side AK203205 1 6 5 4 3 2 AD Connector: B-26 B-26 (B) B-26 Harness side AK402725 77 78 79 80 81 82 83 84 92 93 94 95 96 97 98 99 85 86 87 88 89 90 91 100 101 102 103 104 105 106 115 116 117 118 119 120 121 107 108 109 110 111 112 113 114 130 131 132 133 134 135 136 122 123 124 125 126 127 128 129 72 71 74 73 76 75 R AG A-08 Connector: A-08 Harness side connector Battery Engine-ECU <M/T> or Main Index Group TOC |