1136 / 1980
ELECTRICALS
212
Sr.
No.
Displayed
DTC Code
DTC Description Fault cause
Probable trouble Area
62 P0328 - 12
Knock
sensor
positive line short
to battery
Circuit short
to battery
1) Loose/ damaged connections or intermittent
fault.
2) Sensor supply line short circuit to battery/
ground.
3) Sensor signal line short circuit to battery/
ground.
4) Check the continuity from sensor connector
pins to the ECU pins.
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 knock sensor.
8) Faulty ECU.
63 P0327 - 11
Knock
sensor
positive line short
to ground
Circuit short
to ground
1) Loose/ damaged connections or intermittent
fault.
2) Sensor supply line short circuit to battery/
ground.
3) Sensor signal line short circuit to battery/
ground.
4) Check the continuity from sensor connector
pins to the ECU pins.
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 knock sensor.
8) Faulty ECU.
64 P0171 - 86
Less fuel quantity
than required
Signal invalid
1. Blocked fuel line.
2. Bad fuel regulator.
3. Blocked/leaking injectors.
4.Injector delay time not correct
5. Air leakage through intake.
65 P0172 - 86
Higher
fuel
quantity
than
required
Signal invalid
1. Blocked fuel line.
2. Bad fuel regulator.
3. Blocked/leaking injectors
4. Injector delay time not correct.
5. Air leakage through intake.
66 P2187 - 92
More air quantity
or
less
fuel
quantity at idle
Performance
or Incorrect
operation
1. Need to check with all the parameters one
by one which are contributing for maintaining
A/F ratio i.e., check with connectivity, condition
of the actuators.
2. Faulty SW/ ECU
67 P2188 - 92
Less air quantity
or
more
fuel
quantity at idle
Performance
or Incorrect
operation
1. Need to check with all the parameters one
by one which are contributing for maintaining
A/F ratio i.e., check with connectivity, condition
of the actuators
2. Faulty SW/ ECU