SOURCE: replaced TH700R4 on 1988 c/k1500.now cruise
I would look at the wiring around the bellhousing first to be sure you have not pinched any wires. On that truck, behind the glove box is the PCM, and another white colored box called a DRAC. The DRAC controls the speedometer not the PCM. Look into replacing it. Also check your trans and gauge fuses. Good Luck.
SOURCE: Where is the Cruise Control Module located in a
Cruise control system is controlled by the PCM ( Power Control Module)
SOURCE: cruise control doesn't work.
before replacing anything, check the cruise control fuse under the dash and under the hood the fuse box under the hood should be close to the battery
SOURCE: Want to replace fuse for cruise control on honda crv 2005
The cruise control suddenly stopped working and lites did not come on either, was working fine one day then next day it didnt'. Is there a fuse that might have gone out and if so where is it located?
SOURCE: where is the cruise control fuse located on 2005
I take it that it's not working? 1 thing to keep in mind...if there are any check engine codes stored in the computer, te cruise control will be disabled. When this code is cleared out, the cruise control will work again.
NOT EXACTLY WHAT YOU ASKED BUT VALUABLE INFO I THINK YOU'LL AGREE?
There are several common cruise control failures on Saabs. The pedal switch failures are the most common problem. What generally occurs is that the pedal switches become mis-adjusted or the ears get broken off the switches causing a no contact condition. Another common problem is that the cruise vacuum hose leading from the vacuum pump under the false bulkhead begins to crack where the vacuum fitting is located at the firewall.. The third most common failure is an intermittent functioning cruise control module. This can often be identified by noting that the cruise will work intermittently (900 & 9000 only).
Another Issue: On turbo models, there is a vacuum controlled switch, located near the pump (red cap) that cuts the signal to the APC solenoid valve when the cruise control is on (switch opens). If the switch is faulty (I broke mine on rough road), it can keep turbo boost at the "basic" level even if the cruise is turned off. The APC boost gauge will only go half-way into the yellow region, and performance will suffer. Either replace the vacuum controlled switch or pull the pigtail connector below the switch and short the ends of the yellow/white wire going to the APC solenoid valve and
proper turbo boost should return. Be aware that if this second fix is employed, your turbo is not limited in boost when in cruise control.
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