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1A-105 Engine General Information and Diagnosis: DTC P0171 / P0172: System Too Lean / Too Rich (Sensor-1, Bank-1) S6JB0B1104034 System and Wiring Diagram A/F Sensor Description DTC Detecting Condition and Trouble Area 4 3 9 PNK 6 2 1 a b 8 5 BLK/WHT BLK PNK GRN C37-16 C37-77 C37-19 C37-18 BLK BLK BLU WHT C37-17 C37-79 BLK WHT RED/YEL RED/BLU PNK/BLK BLK/YEL 10 7 11 5 V 5 V 1 3 2 4 5 6 7 8 9 1110 12 13 14 15 16 17 18 19 20 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 33 34 35 36 37 38 39 40 32 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 I6JB01110098-01 a. Adjusting resistor (+) circuit of A/F sensor (bank-1) 3. Ignition Switch 7. A/F sensor heater 11. A/F sensor element b. Adjusting resistor (–) circuit of A/F sensor (bank-1) 4. O2 HTR fuse 8. To A/F sensor (bank-2), HO2S (bank-1 and -2)
1. HO2S heater relay 5. IG COIL fuse 9. ECM
2. Shield wire 6. A/F sensor 10. Adjusting resistor (if equipped)
DTC detecting condition Trouble area DTC P0171 System Too Lean (Sensor-1, Bank-1): • Vacuum leakage |