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1995 Lexus LS400 4.0L MIL Lamp on
Posted to Asian Driveability on 2/3/2020 8 Replies

No drive ability problems but MIL comes on (especially while in Check Mode on Solus scanner). Scratching our heads when monitoring the voltage signal on the scanner is different than when measuring same voltage signal directly at the ECM connector with a v...

8 Replies Received (View Replies)

  Related Documents & Media  1995 Lexus LS400

 
Message Closed w/FIX

car Vehicle Data

1995 Lexus LS400

VIN JT8UF22E7S
Engine4.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsNot OBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0135Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction
P0156Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Malfunction
P0420Catalyst Efficiency Below Threshold (Bank 1)
P0430Catalyst Efficiency Below Threshold (Bank 2)
Message Closed w/FIX

car Vehicle Data

1995 Lexus LS400

VIN JT8UF22E7S
Engine4.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsNot OBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0135Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction
P0156Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Malfunction
P0420Catalyst Efficiency Below Threshold (Bank 1)
P0430Catalyst Efficiency Below Threshold (Bank 2)