93' 300zx ASCD speed control help

Jan 31, 2004 Last reply: 22 years ago 2 Replies

Hi,



I have a 93 yr 300zx none turbo 2 seater. I am having problem with the curise control system. I have nailed it down to the Clutch switch link's problem. The clutch switch is fine. However, according to the service manual, there is a A.S.C.D. cancel switch in series with the clutch switch.


One wire of the clutch switch has 12 VDC and I have checked it connects to the ASCD connector. The other wire supposes to go to ASCD CANCEL SWITCH, according to the manual. Does anybody know where is the ASCD cancel switch located at? Or dose it have one? The manual only indicates it is for Z32, not mentions for any specific year. The ASCD connector on manual shows two rows 16 pin connector but the one in my car is two rows 20 pin. So I don't know if 93 has the cancel switch or not. Anybody know where is the other wire connected to?



Thanks.



chaonis


Isn't that the "cancel" switch right there with the "engage" switch?

Are you sure the brake and clutch switches still have the plastic bumpers on the pedals that push on them intact? That is what I normally find wrong. I have seen a couple of blown up switches but that's about it.

Thanks, Steve.

Actually the ASCD CANCEL SWITCH is located right next to the break pedal switch. What happened was one of the two terminal fingers was broken inside. Called dealer and they charge for $31 for a new switch. I think it is ridiculus for a simple switch. So I went to Home Depot and got a cheap soldering iron and some solders for $6. Took me 10 minutes to aligned the broken pieces right and soldered them together. I also soldered a sheet of copper on the broken finger as well as the good one to reenforce them so that they won't break easily...... See, college degree is not always useless :)

For future reference, you can enter diag mode by turn on curise control while holding down the set/resume handle. The indicator light will start brinking. Then you can go thru all the switches, including clutch and break. If the switch functions correctly, the light will brink faster for a very short period of time. If nothing happen or the light goes off, that is where the problem is at.

------ cha>

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