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1994 Oldsmobile 88 Royale 3.8L MIL Lamp on
Posted to GM Driveability on 3/9/2004 3 Replies

This car came to us with a cruise control problem, with no mention of MIL on. Cruise was repaired by replacing cruise brake pedal switch. During testing, found that P1640 Quad driver # 1 was setting. Code will set when transmission is shifted into reverse as l...

3 Replies Received (View Replies)

  Related Documents & Media  1994 Oldsmobile 88 Royale

 
Message Closed w/FIX

car Vehicle Data

1994 Oldsmobile 88 Royale

VIN 1G3HN52L3R
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsUS Fed
SymptomsMIL Lamp On
OccursAlways, on Decel, in Reverse

Trouble Codes

P1640Output Driver Module 'A' Circuit Malfunction
Message Closed w/FIX

car Vehicle Data

1994 Oldsmobile 88 Royale

VIN 1G3HN52L3R
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsUS Fed
SymptomsMIL Lamp On
OccursAlways, on Decel, in Reverse

Trouble Codes

P1640Output Driver Module 'A' Circuit Malfunction