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.
Procedures
2005 Honda Civic L4-1.7L CNGSECTION Procedures
How to Remove the PCM for Testing
NOTE:
- Make sure you have the anti-theft code for the radio, then write down the frequencies for the radio's preset buttons before you disconnect the negative cable from the battery.
- Enter the anti-theft code, then enter the customer's radio station presets, and set the clock after you reconnect the negative cable to the battery.
1. Disconnect the negative cable from the battery.
2. Remove the passenger's dashboard lower cover, the right kick panel, and the glove box.
3. Remove the bolt. Cut the plastic cross brace in the glove box opening with diagonal cutters in the area shown, and discard it.
4. Remove the relays (A), then remove the bolts and the glove box frame (B).
5. Remove the gray 20P PCM wire harness connector from the PCM mounting bracket. Remove the PCM mounting bolt (A) and the bracket.
6. Remove the nuts, then remove the PCM (B).
7. Install the PCM in the reverse order of removal.
8. Reconnect the negative cable to the battery.
9. Do the PCM idle learn procedure.
NOTE:
- Make sure you have the anti-theft code for the radio, then write down the frequencies for the radio's preset buttons before you disconnect the negative cable from the battery.
- Enter the anti-theft code, then enter the customer's radio station presets, and set the clock after you reconnect the negative cable to the battery.
1. Disconnect the negative cable from the battery.
2. Remove the passenger's dashboard lower cover, the right kick panel, and the glove box.
3. Remove the bolt. Cut the plastic cross brace in the glove box opening with diagonal cutters in the area shown, and discard it.
4. Remove the relays (A), then remove the bolts and the glove box frame (B).
5. Remove the gray 20P PCM wire harness connector from the PCM mounting bracket. Remove the PCM mounting bolt (A) and the bracket.
6. Remove the nuts, then remove the PCM (B).
7. Install the PCM in the reverse order of removal.
8. Reconnect the negative cable to the battery.
9. Do the PCM idle learn procedure.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra 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.