ENGINE 273 MPFI 283 P Code Description as per ISO/SAE Fault cause MIL / Blink Diag Detection / Customer Effect Probable Trouble area Check Code Tool for BS-III-IV P0508 Idle Air Control System Circuit Low Short Circuit ON 33 YES 1. Starting may get affected. 1) Loose/ Damaged Connections . to Ground 2. Vibration at idle. 2) Check the continuity from Stepper Motor connector pins to the ECU pins. ( ECU pin 37-Stepper motor A;ECU P0509 Idle Air Control System Circuit High Short Circuit ON 33 YES 1. Starting may get affected. pin 25-Stepper Motor B;ECU pin 38-Stepper Motor C; to Battery 2. Vibration at idle. ECU pin 26-Stepper Motor D ). 3) Check for back out of pins at both Stepper Motor P0511 Idle Air control circuit Signal Error ON 33 YES 1. Starting may affected. connector and ECU connector. 2. Vibration at idle. 4) Check for damage of pins at both sensor connector and ECU connector. 5) Faulty ISCV. 6) Faulty ECU. P0560 System Voltage not detected Signal Error OFF 26 YES 1. No effect on starting or drivability. 1) Loose/ Damaged Connections . 2) Faulty Alternator/ Rectifiers. P0562 System Voltage Low Min. range OFF 26 YES 1. No effect on starting or drivability. 3) Sulphated Battery terminals. 4) Battery Voltage check. P0563 System Voltage High Max. range OFF 26 YES 1. No effect on starting or driveability. 2. May damage the ECU. P0627 Fuel Pump Control Circuit /Open Signal Error ON 42 YES 1. Vehicle doesn’t start/stops. 1) Loose/ Damaged Connections. 2) Check the continuity from Fuel pump Relay connector P0628 Fuel Pump Control Circuit Low Short Circuit ON 42 YES 1. Pump may get ON continuously, causing damage to the pump pin to the ECU pin19. to Ground 3) Check for back out of pins at ECU connector. 4) Faulty Fuel Pump. P0629 Fuel Pump Control Circuit High Short Circuit ON 42 YES 1. Vehicle doesn’t start. 5) Faulty ECU. . to Battery P0642 Sensor Reference Voltage 1 Circuit Low Short Circuit OFF 37 YES 1. No apprehensive change in driving. 1) Loose/ Damaged Connections. to Ground 2. No fuel cut-off. 2) Faulty Sensor. 3) Faulty ECU. P0643 Sensor Reference Voltage 1 Circuit High Short Circuit OFF 37 YES 1. No apprehensive change in driving. to Battery 2. No fuel cut-off. P0645 A/C Clutch Relay Control Circuit fault Signal Error OFF 32 YES 1. A/C doesn’t get ON. 1) Loose/ Damaged Connections. 2) Relay supply line Short circuit to Battery/ Ground. P0646 A/C Clutch Relay Control Circuit Low Short Circuit OFF 32 YES 1. A/C may get ON always. 3) Relay Control line Short circuit to Battery/ Ground. to Ground 2. May damage the A/C. 4) Check the continuity fromAC Fan Relay connector pin to the ECU pin 18. P0647 A/C Clutch Relay Control Circuit High Short Circuit OFF 32 YES 1. A/C doesn’t get ON. 5) Check if 12 Volts is coming to ECU pin 28 when A/C to Battery request is switched ON. 6) Check for back out of pins at ECU connector. 7) Faulty A/C Clutch Relay. 8) Faulty ECU. P0650 Malfunction Indicator Lamp (Check Nano Lamp) Signal Error Not YES 1. No effect on vehicle performance. 1. Loose or damaged connections. Control Circuit Controlled 2. Check Nano Lamp won’t glow and driver can’t get warning for errors. P0652 Sensor Reference Voltage 2 Circuit Low Short Circuit OFF 37 YES 1. Starts very rich. 1) Loose/ Damaged Connections. to Ground 2. No apprehensive feeling in vehicle running condition. 2) Faulty Sensor. 3. No altitude adaptation. 3) Faulty ECU. P0653 Sensor Reference Voltage 2 Circuit Low Short Circuit OFF 37 YES 1. Starts very rich. to Battery 2. No apprehensive feeling in vehicle running condition. 3. No altitude adaptation. 4. damage to sensor/ECU is possible.
RkJQdWJsaXNoZXIy MTIwNTUz