So, We recently purchased a 2004 Odyssey with 83K miles on it.
We were noticing that when you were stopping the ABS would activate. This would happen at random times under normal conditions not trying to skid.
Also we have filled up twice now and are averaging 16 MPG.
So, this morning I hooked up my scanner. (Learned my lesson and will be taking it with me when I purchase my next vehicle).
The scanner had not Engine, Transmission or Airbag codes, but it did have ABS codes.
Here are a list of the codes I got:
31-02 PFINH Signal Failure
34-02 TP Reference Voltage Failure
53-01 ABS Pump Motor Relay Short Circuit
54-01 Fail-Safe Relay Failure
61-02 Gear Position Signal Failure
61-01 Battery Voltage Failure
After clearing the codes I drove around the block a couple times testing the brakes. I did not really notice the ABS activation like I did before. The ABS also activated properly under hard braking. I did not get any trouble codes back yet, probably have to drive it more.
I also was curious about the Gear position signal failure. I went to the transmission data stream. I noticed that when I put the gear selector in Park and Neutral the "Shift Control" on the reader said "Reverse". When I put the selector in Reverse "Shift Control" said "Invalid".
Does anyone know where I should start looking? Would ABS probablems cause poor gas mileage? I probably need to do a tune up, but want to rule ABS issues out for the gas mileage.
Thanks for any help or ideas you can give.