what does code 42 mean on a 1987 pontiac 6000 LE ? 42 C3-I EST or Bypass Circuit Failure Hope this helps. =)
...EST circuit - or higher than 500 mV - it sets a Code 42 and stays in the bypass mode. If the bypass line is open, or grounded, the ignition module will not switch to the EST mode. The ignition module ...
which relay controls whether or not i get a crank There is no "Relay" per say, other then the solenoid on the starter it's self. The 4 components in the Starting circuit are the ignition switch, the ...
...wiring and or connections. You need some diagnostic skills here, a few cheap tools like a DVOM and test light, and a wiring diagram. You have to test each circuit (wire) from one end to the other. ...
...that. also on the dash when you turn on the key there will be a light indicating an air bag as it tests the
Question about 1989 6000
...trying to cranking the engine , less then battery voltage , bad cable . Find starter voltage drop testing on youtube , watch the video . Also starter circuit testing
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