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.
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HOMESERVICE MANUALSACURA1994INTEGRA (GS-R) L4-1797CC 1.8L DOHC (VTEC)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTTRANSMISSION CONTROL SYSTEMSTESTING AND INSPECTIONSYMPTOM RELATED DIAGNOSTIC PROCEDURESSYMPTOM DIAGNOSIS
1994 Acura Integra (GS-R) L4-1797cc 1.8L DOHC (VTEC)
Symptom Diagnosis
1994 Acura Integra (GS-R) L4-1797cc 1.8L DOHC (VTEC)SECTION Symptom Diagnosis
SYMPTOM DIAGNOSIS
If the self-diagnosis D4 indicator light does not blink, perform an inspection according to the table below,
- If a customer describes the symptoms for codes 3, (yet the "D4" indicator light is not blinking), 6, 11 or 15, it will be necessary to recreate the symptom by test driving, and then checking the "D4" indicator light with the ignition still ON.
- If the "D4" indicator light displays codes other than those listed above or stays lit continuously, the Transmission Control Module (TCM) is faulty.
- Sometimes the "D4" indicator light and the Malfunction Indicator Lamp (MIL)/Check Engine light may come on simultaneously. If so, check the PGM-FI system according to the number of blinks on the MIL/Check Engine light, then reset the memory by removing the BACK UP fuse in the under-hood fuse/relay box for more than 10 seconds. Drive the vehicle for several minutes at speed over 30 mph (50 km/h), then recheck the MIL/Check Engine light.
NOTE:
- PGM-FI system: PGM-FI system on this model is a sequential multiport fuel injection system.
- Disconnecting the BACK UP fuse also cancels the radio anti-theft code, preset stations and the clock setting. Get the customer's code number and make note of the radio presets before removing the fuse so you can reset them.
If the self-diagnosis D4 indicator light does not blink, perform an inspection according to the table below,
- If a customer describes the symptoms for codes 3, (yet the "D4" indicator light is not blinking), 6, 11 or 15, it will be necessary to recreate the symptom by test driving, and then checking the "D4" indicator light with the ignition still ON.
- If the "D4" indicator light displays codes other than those listed above or stays lit continuously, the Transmission Control Module (TCM) is faulty.
- Sometimes the "D4" indicator light and the Malfunction Indicator Lamp (MIL)/Check Engine light may come on simultaneously. If so, check the PGM-FI system according to the number of blinks on the MIL/Check Engine light, then reset the memory by removing the BACK UP fuse in the under-hood fuse/relay box for more than 10 seconds. Drive the vehicle for several minutes at speed over 30 mph (50 km/h), then recheck the MIL/Check Engine light.
NOTE:
- PGM-FI system: PGM-FI system on this model is a sequential multiport fuel injection system.
- Disconnecting the BACK UP fuse also cancels the radio anti-theft code, preset stations and the clock setting. Get the customer's code number and make note of the radio presets before removing the fuse so you can reset them.
RENDER: 1.0x
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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.