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.
2002 Acura 3.2CL BaseFACTORY OEM SERVICE PROCEDURE
PGM-FI Main Relay Circuit Testing: 3.5RL
- Remove PGM-FI main relay located under left side of instrument panel. Connect battery voltage to relayconnector "B" terminal No. 3 (Blue/Red wire). Connect connector "B" terminal No. 2 (Yellow/Green wire) to ground. See Figure .
- Test for continuity between relay connector "B" terminal No. 5 (Red/White wire) and connector "A" terminal No. 2 (Yellow wire). See WIRING DIAGRAMS article. If continuity exists, go to next step. If continuity does not exist, replace relay.
- Connect battery voltage to relay connector "A" terminal No. 4 (Black/Yellow wire). Connect connector "B" terminal No. 7 (Black wire) to ground. Test for continuity between relay connector "A" terminals No. 1 and 3 (both Yellow/Black wires). If continuity exists, go to next step. If continuity does not exist, replace relay and retest.
- Connect battery voltage to relay connector "A" terminal No. 1 (Yellow/Black wire). Connect connector "B" terminal No. 2 (Yellow/Green wire) to ground. Test for continuity between relay connector "B" terminal No. 5 (Red/White wire) and connector "A" terminal No. 2 (Yellow wire). If continuity exists, relay is okay. If continuity does not exist, replace relay.
Factory Service Tools
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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.
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