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.
1999 Acura 3.2TLFACTORY OEM SERVICE PROCEDURE
Using Malfunction Indicator Light (MIL)
- Locate 2-pin service check connector behind glove box. See Fig 1. Install Service Check Connector Tool (07PAZ-0010100) to service check connector. Turn ignition on. Observe MIL. Light indicates a Diagnostic Trouble Code (DTC) by number of flashes.
- Single-digit trouble codes (1-9) are indicated by individual short flashes. Double-digit trouble codes (10-59) are indicated by a series of long and short flashes. The number of long flashes equals the first digit. The number of short flashes equals the second digit. If any DTCs are retrieved, see DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION table. If MIL is inoperative, see DIAGNOSTIC TESTS .
- To determine if code is a hard or intermittent fault, clear PCM memory and recheck for code to appear. See PCM RESET PROCEDURE/CLEARING CODES . If codes other than those listed appear, temporarily substitute a known-good PCM and retest system.
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.