Table of Contents
How do I find my honda ECU code?
All Honda ECUs have a part number which is located on the side of the ECU and inside the ECU on the connector. e.g. 37820-P72-A01. The part number consists of three components: Honda’s part number for ECU, which is always 37820….
- 88-91 ECU: Manual: 000, 001, 002, A00, A01, A10, J00, J001, C01, C00.
- 92-95 ECU:
- 96-00 ECU:
What are the symptoms of a bad ECM?
A faulty ECM can send poor data to your vehicle’s transmission control module (TCM). As a result, the vehicle cannot properly shift gears or apply power, causing the shift to feel awkward, delayed, or even jarring. When this occurs, the engine may sporadically become more active or stall out.
What codes will a bad ECM throw?
The most common trouble codes with the check engine light are: Codes: P0171 through P0175 (sensing your oxygen levels) Codes: P0300 through P0305 (engine misfires) Codes: P0411, P0440, P0442, P0446, and P0455 (evaporative system)
What are the ECU fault codes?
Common ECU Fault Codes
- P0300-P0305. These codes represent problems with engines misfiring.
- P0171, P0174. These codes represent fuel trim trouble.
- P0411, P0440, P0442, P0446, P0455.
- P0420, P0430.
- P0133, P0135, P0141.
Where is the ECU on a Honda CRX 1988-1991?
1988-1991 HONDA CRX. The ECU is located at the front of the passenger footwell, under the carpet. There is a single flashing light in the center of the ECU that flashes the codes. Simply count the flashes in each sequence to determine the code.
What is the ECU part number for a 1991 Honda Civic?
1989-1991 Honda Civic/CRX SiR (or auto from 90-91 Integra (Xsi) Honda ECU part numbers are a series of 3 alphanumeric sections. The first block is the Honda part number denoting it is an ECU. This is almost always 37820.
How do I find the error code on my ECU?
There is a single flashing light in the center of the ECU that flashes the codes. Simply count the flashes in each sequence to determine the code. Code 0______Faulty ECU
What does Pr3 mean on an ECU code?
This code is often associated with the engine or car. for example, a PR3 ECU often has an engine with a PR3 headstamp. The Last 3 characters denote the ECU Revision type and each character is a different indicator. The first character indicates market the ECU is intended to support.