2004 CHEVY K1500 EBCM BRAKE LINE LOCATION - 2000 Chevrolet Silverado 1500

Back side of the frame it says.

https://www.chevyavalanchefanclub.com/cafcna/index.php?threads/ebcm-abs-module-replacement-and-tips.121523/

and there is a video as well

https://www.google.com/search?q=2004+Chevy+Avalanche+ABS+module+location

..

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DTC C1216

Circuit Description
The EBCM monitors the On/Off state of each solenoid and recognizes when the ABS is in pressure decrease too long. This fault indicates that the EBCM was unable to decrease brake pressure enough to a certain wheel to prevent excessive wheel slip.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC C1216 EBCM Commanded Pressure Release Too Long

If you don't know what EBCM is - electronic brake control module (computer)

Electronic Brake Control Module Replacement

Removal Procedure

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1. Turn OFF the ignition.
2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
3. Remove the left front wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
4. Remove the left front wheelhouse extension. Refer to Fascia Extension Replacement - Front in Bumpers.
Important The area around the electronic brake control module (EBCM) must be free from loose dirt to prevent contamination of disassembled ABS components.

5. Thoroughly wash all contaminants from around the EBCM.
6. Rotate the EBCM connector tab up to the unlocked position.
7. Remove the EBCM connector position assurance (2) from the EBCM electrical connector (1).
Caution! To prevent equipment damage, never connect or disconnect the wiring harness connection from the EBCM with the ignition switch in the ON position.

8. Disconnect the EBCM electrical connector (1) from the EBCM (4).


Click to Enlarge

9. Disconnect the brake pressure modulator valve (BPMV) electrical connector (2) from the EBCM (3).


Click to Enlarge

10. Remove the 6 EBCM to BPMV screws (2).


Click to Enlarge

11. Clean the surface of the EBCM/BPMV assembly.
Important The EBCM cannot be repaired. If faulty, the unit must be replaced.

12. Separate the EBCM (2) from the BPMV (1).

The above procedure is removal. Usually the code won't tell you what to replace. I don't know what testing you have done? Just reading the code might not be enough? The main reason I posted is to give you the location of module. Proper diagnostics is up to you. I hate to see you replace something and it not fix the problem. This is just my opinion.

ABS code not check engine light code .
DTC C0201 00: Antilock Brake System (ABS) Enable Relay Contact Circuit
The solenoid relay, located within the electronic brake control module (EBCM), supplies battery voltage to all of the valve solenoids.
Circuit/System Verification
With scan tool installed, clear the DTCs then drive the vehicle in a straight line at a speed greater than 20 km/h (13 mph). If the DTC did not set as a current DTC see diagnostic aids.
Circuit/System Testing
Test for an open or a short to ground in the battery positive voltage circuit to the EBCM. Verify no open or a short to ground is found.
Test the EBCM ground circuit, an open or high resistance.
? If an open or a short to ground is found, repair the circuit.
Replace the EBCM assembly.

DTC C0201 (Equal to or over 8600 GVW)
The system relay, located within the electronic brake control module (EBCM), supplies battery voltage to all of the valve solenoids and to the Antilock Brake System (ABS) pump motor. When the relay contacts close, the EBCM monitors the voltage supplied to the valve solenoids and compares this voltage to monitored ignition voltage.
Action Taken When the DTC Sets
• The EBCM disables the ABS/DRP.
• The ABS indicator turns ON.
• The brake warning indicator turns ON

The EBCM is located on the drivers side frame rail under the truck. There are 5 brake lines that run into the unit.

the ebcm is located under the truck on top of the bpmv (abs motor) almost under the drivers seat attached to the frame is the abs unit you will see all the brake lines hooked to it. the ebcm is bolted to the top of unit

The EBCM (Electronic Brake Control Module) is mounted to the BPMV (Brake Pressure Modulator Valve) located at the left front (lower) engine compartment.

EBCM Removal & Installation Procedure

1. Remove the Brake Pressure Modulator Valve (BPMV). Refer to the Hydraulic Control Unit (BPMV) procedure in this section.
   
2. Remove the 4 T-25 Torx® bolts (1) from the EBCM (2). (click image for zoom)
   
   
   Fig. Bolts (1), EBCM (2), bracket (3), bolts (4) and BPMV (5) (click image for zoom)
   
   
3. Disconnect the 2-way ABS pump motor connector.
   WARNING Do not use a tool to pry the EBCM or the BPMV. Excessive force will damage the EBCM.
   
4. Remove the EBCM (2) from the BPMV (5). Removal may require a light amount of force.
   1. Do not reuse the EBCM mounting bolts. Always install new bolts.
5. Clean the EBCM to BPMV mounting surfaces with a clean cloth.

To install:

WARNING Do not use RTV or any other type of sealant on the EBCM gasket or mating surfaces.

1. Install EBCM (2) onto BPMV (5).
   
2. Install the 4 EBCM bolts (1).
   1. Tighten the 4 bolts to 39 inch lbs. (5 Nm) in an X-pattern.
3. Connect the 2-way ABS pump motor connector to the EBCM.
   
4. Revise the tire calibration using the Scan Tool Tire Size Calibration function.
   
5. Use the scan tool to check and clear DTC memory.

Hope this helps.

1990 Chevy 4.3 l engine runs rough at idle half the time-- sometimes it's OK, other days it's rough and can smell raw gas, as tho it's running rich... any ideas?

how did you come to that conclusion

Hello,
I hope this helps.







Thank You,
Roy