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1991 Lexus LS400 4.0L Mil Lamp On & Off
Posted to Asian Driveability on 6/3/2010 7 Replies

Customer stated that the mil lt comes on at various times but then goes off. I scanned computer and found the 2 codes listed. I did a continuity ck like mitchell states by disconnecting the computer connector and test between grd & each terminal. It tested goo...

7 Replies Received (View Replies)

  Related Documents & Media  1991 Lexus LS400

 
Message Closed w/Summary

car Vehicle Data

1991 Lexus LS400

VIN JT8UF11E6M
Engine4.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
SymptomsMIL Lamp on & Off
OccursIntermittently

Trouble Codes

521 Knock Sensor Circuit
552 Knock Sensor Circuit
Message Closed w/Summary

car Vehicle Data

1991 Lexus LS400

VIN JT8UF11E6M
Engine4.0 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
SymptomsMIL Lamp on & Off
OccursIntermittently

Trouble Codes

521 Knock Sensor Circuit
552 Knock Sensor Circuit