240 Wagon Ignition Module
#1
#2
how do you know its the module thats bad? have you tested its input and output with a volt meter while cranking?
power module for a 89+ 240 is Volvo 3501921, which is Bosch 0-227-100-124.
This also fits most all 740,940's (anything with LH injection and bosch ignition, anyways) (older 240's had Chrysler ignition and didn't use a power module).
it has 5 pins. ground is pin 2, power in is pin 4. pin 5 is pulsed by the ICU to fire the spark, 3 is the shield around this low level input signal. pin 1 goes to pin 1 on the coil and fires the coil by grounding it when told by pin 5.
so I'd put a LED test light on pin 5 to ground, and crank the car and make sure you see blinks... make sure there's full power on pin 4.
power module for a 89+ 240 is Volvo 3501921, which is Bosch 0-227-100-124.
This also fits most all 740,940's (anything with LH injection and bosch ignition, anyways) (older 240's had Chrysler ignition and didn't use a power module).
it has 5 pins. ground is pin 2, power in is pin 4. pin 5 is pulsed by the ICU to fire the spark, 3 is the shield around this low level input signal. pin 1 goes to pin 1 on the coil and fires the coil by grounding it when told by pin 5.
so I'd put a LED test light on pin 5 to ground, and crank the car and make sure you see blinks... make sure there's full power on pin 4.
#3
p.s. they get pretty warm when running, its a good idea to clean the metal surface they are mounted on, and use some computer heat sink compound between the module and the metal surface, this way they stay cooler. don't use a lot of compound, just a little dab that will spread real thin when its bolted down.
#4
p.s. they get pretty warm when running, its a good idea to clean the metal surface they are mounted on, and use some computer heat sink compound between the module and the metal surface, this way they stay cooler. don't use a lot of compound, just a little dab that will spread real thin when its bolted down.
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