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ENGINE 273 MPFI
279
DTC LIST FOR TATA NANO:
In case of any fault, Diagnostic System helps us to identify the cause, condition, situation or problem. Diagnostic System also suggests corrective action to be taken.
Whenever there is an error in vehicle CKNL (service indicator) glows in instrument cluster and informs driver that there are some faults in the vehicle.
List of all the Diagnostic Trouble Codes applicable for the 273 MPFI 01 and 273 MPFI 03 engine are given in the table below. The table contains the exact code description may vary depending upon the make/type of the diagnostic tool
used.
The DTC codes can be read / accessed by using TATADiagnostic Tester. The tool through the OBD connector will communicate with ECU and read the memory areas and display the details.
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
P0030
HO2S1 Heater Control Circuit Range/
Signal Error
ON 27 YES 1. Vehicle running in open loop initially for a longer time.
1) Loose/ Damaged Connections or Intermittent fault.
Performance
2. No effect on starting and driveability.
2) Sensor supply line Short circuit to Battery/ Ground.
3) Sensor Signal line Short circuit to Battery/ Ground.
P0031
HO2S1 Heater Control Circuit Low
Short Circuit
ON 27 YES 1. Vehicle may run in open loop initially for a longer time.
4) Check for back out of pins at both Sensor connector
toGround
2. No effect on starting and driveability.
and ECU connector.
3. Inside ceramic may get damaged due to continuous heating.
5) Check for damage of pins at both sensor connector
and ECU connector.
P0032
HO2S1 Heater Control Circuit High
Short Circuit
ON 27 YES 1. Vehicle running in open loop initially for a longer time.
6) Check the continuity from sensor connector pins to the
to Battery
2. No effect on starting and driveability.
ECU pins.(ECU pin 14- Sensor Pin 2; ECU Pin 31-
Sensor Pin 3; ECU pin 43- Sensor pin 4.)
P0053
HO2S1 Heater Resistance
Resistance
ON 27 YES 1. Vehicle running in open loop initially for a longer time.
7) Faulty HO2S Sensor.
too high
2. No effect on starting. Driveability may get effected during idle & 8) Faulty ECU
part load conditions.
P0107
ManifoldAbsolute Pressure/Barometric
Short Circuit
ON 21 YES 1. Starts very rich.
1) Loose/ Damaged Connections or Intermittent fault.
Pressure Circuit Low Input
to Ground /
2. No apprehensive feeling invehicle runningcondition.
2) Sensor supply line Short circuit to Battery/ Ground.
No signal
3. No altitude adaptation.
3) Sensor Signal line Short circuit to Battery/ Sensor
detected
Supply/Ground.
4) Check the continuity from sensor connector pins to the
P0108
ManifoldAbsolute Pressure/Barometric
Short Circuit
ON 21 YES 1. Starts very rich.
ECU pins.( ECU pin 22-Sensor pin 4; ECU pin 7-Sensor
Pressure Circuit High Input
to Battery /
2. No apprehensive feeling invehicle runningcondition.
1.)
Sensor Supply
3. No altitude adaptation.
5) Check for back out of pins at both Sensor connector
4. damage to sensor/ECU is possible.
pin 3; ECU pin 24-Sensor Pin 2; ECU pin 42- Sensor Pin
and ECU connector.
6) Check for damage of pins at both sensor connector
and ECU connector.
7) Faulty TMAP Sensor.
P0112
IntakeAirTemperature Sensor Circuit Low
Short Circuit
ON 22 YES 1. Default temperatuture is taken (20°C).
1) Loose/ Damaged Connections or Intermittent fault.
toGround
2. No effect on driveability.
2) Sensor supply line Short circuit to Battery/ Ground.
3) Sensor Signal line Short circuit to Battery/ Sensor
P0113
IntakeAirTemperature Sensor Circuit High
Short Circuit
ON 22 YES 1. Default temperatuture is taken (20°C).
Supply/Ground.
to Battery/
2. No effect on driveability.
4) Check the continuity from sensor connector pins to the
Signalerror
ECU pins.( ECU pin 22-Sensor pin 4; ECU pin 7-Sensor
pin 3; ECU pin 24-Sensor Pin 2; ECU pin 42- Sensor Pin
1).
5) Check for back out of pins at both Sensor connector
and ECU connector.
6) Check for damage of pins at both sensor connector
and ECU connector.
7) Faulty TMAP Sensor.
8) Faulty ECU.