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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
IdleAir Control System Circuit Low
Short Circuit
ON 33 YES 1. Starting may get affected.
1) Loose/ Damaged Connections .
toGround
2. Vibration at idle.
2) Check the continuity from Stepper Motor connector
pins to the ECU pins. ( ECU pin 37-Stepper motorA;ECU
P0509
IdleAir 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
IdleAir control circuit
SignalError
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
SignalError
OFF 26 YES 1. No effect on starting or drivability.
1) Loose/ Damaged Connections .
2) FaultyAlternator/ 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.
toGround
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. Noapprehensivechange indriving.
1) Loose/ Damaged Connections.
toGround
2. No fuel cut-off.
2) Faulty Sensor.
3) Faulty ECU.
P0643
Sensor Reference Voltage 1 Circuit High
Short Circuit
OFF 37 YES 1.Noapprehensivechange indriving.
to Battery
2. No fuel cut-off.
P0645
A/C Clutch Relay Control Circuit fault
SignalError
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.
toGround
2. May damage theA/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) FaultyA/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
forerrors.
P0652
Sensor Reference Voltage 2 Circuit Low
Short Circuit
OFF 37 YES 1. Starts very rich.
1) Loose/ Damaged Connections.
toGround
2.Noapprehensive feeling invehicle runningcondition.
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.Noapprehensive feeling invehicle runningcondition.
3. No altitude adaptation.
4. damage to sensor/ECU is possible.