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P0704 Fault in 1996 Chevrolet K1500 5.7L with Manual Transmission After Swap

Model: 1996 chevy k1500 Fault Code: P0704 Posted: 2017-05-04 19:43

I own a 1996 Chevrolet K15

Related fault codes

P0704

Comments (2)

Anonymous 2017-05-05 05:55

Switched from automatic to manual transmission — is that correct? Did you replace the Powertrain Control Module (PCM)? I suspect there might be additional transmission-related codes. Anyway, the clutch input switch is normally closed (NC) — are there 12V readings on both sides? Just curious — why does this matter?

Anonymous 2020-08-26 22:19

I'm still receiving a P0704 code after installing a manual transmission. The ECM was reprogrammed to match the 1996 model with a manual transmission, but I never connected the clutch input switch. I only installed one wire — the one for starting — and ran it from the neutral safety switch located on the side of the manual transmission.