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DTC P0135 A/F SENSOR 1 HEATER
EC-1139
[YD (WITH EURO-OBD)]
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EC
5. CHECK AIR FUEL RATIO (A/F) SENSOR 1 HEATER GROUND CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 35 and ground. Refer to Wiring Diagram.
2. Also check harness for short to power.
OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to power in harness or connectors.
6. CHECK AIR FUEL RATIO (A/F) SENSOR 1 HEATER
Refer to EC-1140, "
Component Inspection" .
OK or NG
OK >> GO TO 7.
NG >> GO TO 8.
7. CHECK INTERMITTENT INCIDENT
Perform EC-1058, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> GO TO 8.
NG >> Repair or replace.
8. REPLACE AIR FUEL RATIO (A/F) SENSOR 1
1. Replace air fuel ratio (A/F) sensor 1.
CAUTION:
● Discard any air fuel ratio (A/F) sensor which has been dropped from a height of more than 0.5 m
(19.7 in) onto a hard surface such as a concrete floor; use a new one.
● Before installing new air fuel ratio (A/F) sensor, clean exhaust system threads using Heated
Oxygen Sensor Thread Cleaner and approved anti-seize lubricant.
2. Perform A/F Sensor Learning Value Clear. Refer to EC-1000, "
A/F Sensor Learning Value Clear" .
>> INSPECTION END
Continuity should exist.
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