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.
1996 Acura Integra GS-R, 4D SedanFACTORY OEM SERVICE PROCEDURE
Alternator Fr Signal
- Disconnect 4-pin connector from alternator. Turn ignition on. Measure voltage between PCM terminals C17 and A9. See Figure. If voltage is not about 5 volts, go to next step. If voltage is about 5 volts, go to step 3).
- Turn ignition off. Disconnect negative battery cable. Disconnect PCM connector "C". Check continuity between body ground and PCM terminal C17. If continuity exists, repair shorted White/Red wire between PCM terminal C17 and alternator. If continuity does not exist, substitute a known-good PCM and recheck for proper voltage.
- Turn ignition off. Reconnect alternator 4-pin connector. Start and warm engine to operating temperature. Measure voltage between PCM terminals C17 and A9. Turn headlights and rear defogger on. If voltage does not decrease, go to next step. If voltage decreases, alternator FR signal is okay.
- Turn ignition off. Disconnect PCM connector "D". Disconnect alternator 4-pin harness connector. Using a jumper wire, apply ground to White/Red wire at alternator 4-pin harness connector. Check for continuity between PCM terminal C17 and ground. If no continuity exists, repair open White/Red wire between PCM terminal C17 and alternator. If continuity exists, alternator FR signal is okay.
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.