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ELECTRICALS
216
Sr.
No.
Displayed
DTC Code
DTC Description
Fault
cause
Probable trouble Area
80 P0136 - 13
Downstream
oxygen
sensor
signal open load
Circuit
open
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 downstream HO2S2 sensor.
8) Faulty ECU.
81 P0132 - 12
Upstream oxygen
sensor circuit 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 upstream HO2S1 sensor.
8) Faulty ECU.
82 P0131 - 11
Upstream oxygen
sensor circuit 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 upstream HO2S1 sensor.
8) Faulty ECU.
83 P0134 - 64
Upstream oxygen
sensor circuit signal
not plausible
Signal
plausibility
failure
1) Check for lambda sensor poisoning or
contamination.
2) Check for Exhaust system leakage or soot
formation.
3) Check for oxygen sensor connector.