AboutGary J. Meyer II Expertise The types of questions I can answer would be related to Honda automobile diagnosis and repair procedures. I can't diagnose every car via email because some tests just require a good old fashion road test.
Experience I am a Honda automobile technician with twenty years of new car dealership experience. My first few years as a Honda tech date back to when Honda cars were still offered in carburated models. In the last few years, I've been exposed to the integration of hybrid powered cars, the Natural Gas powered GX Civic, and electronic features ranging from voice activated GPS navigation to power sliding doors. I have been certified as an ASE Master Technician and passed the L1 Advanced Engine Performance test in 2000. I opened my own independent import repair shop specializing in but not limited to Honda automobiles in 2008. Operating my own shop has re-energized my enthusiasm for automobiles.
Publications a few articles www.articlesbase.com, advertisement in East Coast Ink Magazine Spring 2009 and Fall 2009
Education/Credentials ASE Certification, attending American Honda's training center and web based training American Honda provided, New car dealership management training
Awards and Honors 3 time Honda Top Tech finalist, achieved Honda Bronze, Silver, Gold, and Platinum Level Training status,achieved a training level of 99 percent of all current American Honda Traning center Modules and self study proformance modules in 1999, Re-certified ASE Master technician, L1 Advanced engine performance ASE certification
Question Please help me?
92 Honda accord Lx - D4 light comes on solid car will not have any pep when first starting out. It seems to be starting in third gear. The car will not shift after second gear. Manually of otherwise. This problem is completely intermittent. I have replaced the tcu with a used part. Still same problem. i have replaced the upper and lower shift selenoids.The transmission fluid is fine. No codes when the wire on the tcu is tripped. Now here is something that may or may not have anything to do with this problem, but i have seen other people mention the same thing, my brake light bulb light on the dash is illuminated, but it's intermittent as well. the maintenance required dial that is wired to the speedometer has stopped working around 5k miles ago, right around the same time this problem with d4 light started. Also i have noticed that the problem seems to occur only after we have heavy rains. Unplugging the tcu remedies the problem and over the past 3 months i have been swapping out the original and the replacement numerous times. The car then runs great for a few weeks and then it happens to rain and then the D4 light thing happens. You can actually feel the transmission engaging and disengaging as you drive down the road. It has also happened while the car has been running in park. Please help?
It sounds like you have the classic transmission control unit failure. Take the cover off of the control unit and inspect it for leaking or burned resistors and capacitors. see the images I have attached. Another issue that can cause these symptoms is a failing PGM-FI main relay. If the relay is failing it may drop voltage supplied to the TCU. A failing main relay would have a No start condition at times.
The maint. req'd indicator is not related and may be corrected by inserting the ignition key into the slot below the indicator.
There are two brake lamp indicators on the gauge cluster. One is for the hand brake and master cylinder float circuit. The other indicator is for the brake light bulbs. The tail lamps tend to leak water into the brake lamp harness or brake control units in the trunk.
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