Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1966 Chevrolet Biscayne 7.0L Eng, Automatic Trans, Trans Mfr CD THM400FACTORY OEM SERVICE PROCEDURE
Electronic Brake Traction Control Module
| Condition | Code | Procedure |
|---|---|---|
| Application incorrect | B | Require replacement |
| Attaching hardware broken | A | Require repair or replacement of hardware |
| Attaching hardware missing | C | Require replacement of hardware |
| Attaching hardware not functioning | A | Require repair or replacement of hardware |
| Attaching hardware threads damaged | A | Require repair or replacement of hardware |
| Attaching hardware threads stripped (threads missing) | A | Require replacement of hardware |
| Connector broken | A | Require repair or replacement |
| Connector melted | A | Require repair or replacement |
|
NOTE:
Determine cause and correct prior to repair or replacement of part.
|
||
| Connector missing | C | Require repair |
| Contaminated | A | Require repair or replacement |
|
NOTE:
Determine source of contamination, such as engine coolant, fuel, metal particles, or water. Require repair or replacement.
|
||
| Inoperative | A | Require repair or replacement |
|
NOTE:
Inoperative includes intermittent operation. Some components may be serviceable; check for accepted cleaning procedure.
|
||
| Leaking | B | Require repair or replacement |
| Malfunctioning | A | Require replacement |
|
NOTE:
Includes inoperative, intermittent operation, failure to perform all functions, out of OEM specifications, or out of range.
|
||
| Missing | C | Require replacement |
| Terminal broken | A | Require repair or replacement |
| Terminal burned, affecting performance | A | Require repair or replacement |
|
NOTE:
Determine cause and correct prior to repair or replacement of part.
|
||
| Terminal burned, not affecting performance | 2 | Suggest repair or replacement |
| Terminal corroded, affecting performance | A | Require repair or replacement |
| Terminal corroded, not affecting performance | 2 | Suggest repair or replacement |
| Terminal loose, affecting performance | B | Require repair or replacement |
| Terminal loose, not affecting performance | 1 | Suggest repair or replacement |
| Threads damaged | A | Require repair or replacement |
| Threads stripped (threads missing) | A | Require replacement |
| Wire lead conductors exposed | B | Require repair or replacement |
| Wire lead corroded | A | Require repair or replacement |
| Wire lead open | A | Require repair or replacement |
| Wire lead shorted | A | Require repair or replacement |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.