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Cruise control module 1989 chevrolet c3500 (location)

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SOURCE: need schematic for location of ECM on 2002 Chev Silverado 5.3L GAS ENGINE

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Good luck...

Posted on Aug 14, 2008


SOURCE: need a diagram for location

Where is the transmission fluid located and is the symbol a "gear" on 2005 Cavalier

Posted on Nov 06, 2008

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SOURCE: change 1996 Chevrolet C3500 from 5.7 gas to 6.2 diesel

Actually, the last post is dead wrong. The 6.2 was a great engine, it would run and run and run. The 6.5 is a garbage motor, soooo many problems. The 6.2 was gutless, but it got incredible mileage.

Posted on Nov 17, 2008

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SOURCE: 1989 Jaugaur Heater problem

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Posted on Sep 29, 2009

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SOURCE: Location of 2003 audi a4 cruise control module?

PCM is the new name for the ECU so yes it is the ECU, PCM stands for "powertrain control module"

Posted on Mar 08, 2010

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1 Answer

Location of cruise control fuse in fuse box for a 2008 Chevrolet express van 3500

The cruise control doesn't have a dedicated fuse, it is part of the engine control module which is called the PCM.

Oct 23, 2016 | Chevrolet Cars & Trucks

1 Answer

Where can I find the cruise control fuse on a 2008 hhr

The odds of a fuse being the problem with a non operating cruise control are astronomical . Knowing how the cruise control works is a must in trouble shooting . The different modules involved ,the GMLAN serial data network etc... Here is the factory repair manual description .
Cruise Control Description and Operation
Cruise control is a speed control system that maintains a desired vehicle speed under normal driving conditions at speeds above 40 km/h (25 mph). Steep grades may cause variations in the selected vehicle speeds.
The following are the main components of the cruise control system:
The accelerator pedal

The brake pedal position (BPP) sensor

The body control module (BCM)

The cruise on/off switch

The + RES switch (equivalent to resume/accel switch)

The - SET switch (equivalent to set/coast switch)

The engine control module (ECM)

The clutch pedal position (CPP) sensor, if equipped with a manual transmission

The throttle actuator control (TAC) motor

The vehicle speed sensor

The body control module (BCM) monitors the signal circuit of the cruise control switches, which are located on the steering wheel. The BCM relays the cruise control switch status to the engine control module (ECM) via the GMLAN serial data circuit. The ECM uses the status of the cruise control switch to determine when to capture and maintain the vehicle speed. The ECM monitors the vehicle speed signal circuit in order to determine the desired vehicle speed. The ECM uses the TAC motor in order to maintain the vehicle speed. For further information on the TAC system, refer to Throttle Actuator Control (TAC) System Description for the 2.2L engine or to Throttle Actuator Control (TAC) System Description for the 2.4L engine.
Ignition voltage is supplied to the cruise control switch from the 2-ampere EPS fuse located in the integrated BCM fuse block. The cruise control function switches are arranged in a resistive ladder design, with each cruise control function switch having a different resistance value. The BCM detects a specific voltage value that is associated with the cruise control function switch being activated. When the normally open cruise control on/off switch is turned ON, the switch closes and the BCM sends a GMLAN serial data message to the ECM indicating that the on/off switch is active. Similarly, when the normally open + RES switch or the normally open - SET switch are pressed, the switch closes and the BCM detects the predetermined voltage signal on the cruise control switch signal circuit. The BCM sends a GMLAN serial data message to the ECM indicating that the + RES switch or the - SET switch is active. The + RES switch or the - SET switch will remain inactive when the BCM has not received the predetermined voltage signal from the on/off switch.
Unless the air bag light is lit too , your best bet would be to take your vehicle to a qualified repair shop.

Aug 09, 2016 | 2008 Chevrolet Chevrolet HHR LT

1 Answer

Towing capacity for a 1989 c3500 chevy 454 7.4 L

To give an accurate weight, need to know tire size and rear axle ratio.

Oct 15, 2014 | 1989 Chevrolet C3500

1 Answer

Also Im running my fuel pump direct off my fuse box cause it dont come on with Ignition, checked all fuses they are good is there a relay for pump and if so where.thank you.

The fuel pump relay is located in the underhood fuse-relay center. The vehicle control module (VCM) handles relay operation

Nov 07, 2012 | 1998 Chevrolet C3500

1 Answer

I have a 93 chevy c3500 that wont shift into high gear I belive it is in the transmission control module but can't locate the box Where is it?


Nov 01, 2010 | 1993 Chevrolet C1500

1 Answer

I have a 4 x 4 2000 S10, the cruise corntrol is not working. the fuses look good. All light appear to be OK. what else should I check?

If there is an Auto Zone around your area, have the truck checked for any DTC codes that may keep your Cruise control from working and make sure that your brake lights do not stay on which can be the cause of the cruise control from working. If all the simple things have been checked, then check the wire harness to the cruise control modulator. The modulator is located in the fire wall beside the brake booster, make sure the wire harness is not damaged in anyway. If all the wires seam good, then it's a good chance that it's going to be the cruise control modulator it self. Mine went bad a few years back and i picked one up from the Salvaged yard for around $35,00. You don't have to get one from a 2000, you can pick one out from a newer truck like yours of one from a newer truck with the same cruise control modulator. Good luck and keep me posted, be glad to answer any more questions you may have. 

Oct 26, 2009 | 2000 Chevrolet S-10

1 Answer

I have a 93 c3500 with a 454. it's getting fuel, I also put in a new coil but it's not not giving off a spark from the new coil. I also replaced the ignition fuse.

Coil firing is controlled by the ignition module. Located on distributor under distributor cap. Can be tested at parts reatilers such as O'reilly's, usually at no charge.

May 01, 2009 | 1993 Chevrolet C3500

1 Answer

Cruise control quit working today

Check for vaccum hoses attached to the cruise control module in engine compartment. These hose may be try rotted and your loosing vaccum when you activacte cruise control.

Mar 22, 2009 | 1989 Chevrolet K1500

1 Answer

89 Chevy 1/2 ton cruise control turned truck off

1989 20yrs old ,well it must have an ignition module ,but as i have never seen a truck like this i couldnt tell you the location ,its either by the coil or inside the distributor ,could evan be screwed to the outside of distributor .Iam sure this is your problem

Feb 19, 2009 | 1989 Chevrolet K1500

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