1995 Lexus LS400 4.0L MIL Lamp on
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...
FIX posted 2/13/2020
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Message Closed w/FIX
Vehicle Data1995 Lexus LS400
Trouble Codes
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Message Closed w/FIX
Vehicle Data
1995 Lexus LS400
VIN | JT8UF22E7S |
Engine | 4.0 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Emissions | Not OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Always |
Trouble Codes
P0135 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction |
P0156 | Heated Oxygen Sensor (Bank 2 Sensor 2) Circuit Malfunction |
P0420 | Catalyst Efficiency Below Threshold (Bank 1) |
P0430 | Catalyst Efficiency Below Threshold (Bank 2) |