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What is the ICM? and do you think it could cause this problem.............?
My SES light came on again. the first time it came on it has a 300 (random missfire) and an 1870 (4X4 Transfer Case circuitry malfunction) so I figured the 1870 was probably just some weird side effect of the 300 code. well i replaced Plugs and wires and coil packs, and had the codes cleared.. the light went off for about 3 days, then it came back on.. i took it back. the 300 was gone but the 1870 was back... so what's the deal.. i don't have a 4X4 transfercase..
My SES light came on again. the first time it came on it has a 300 (random missfire) and an 1870 (4X4 Transfer Case circuitry malfunction) so I figured the 1870 was probably just some weird side effect of the 300 code. well i replaced Plugs and wires and coil packs, and had the codes cleared.. the light went off for about 3 days, then it came back on.. i took it back. the 300 was gone but the 1870 was back... so what's the deal.. i don't have a 4X4 transfercase..
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