A/T - Stuck In Park After Throttle Body Replacement

SOURCE:
Honda Service News July 2004

TITLE:
A/T Stuck in Park After Throttle Body Replacement

APPLIES TO:
A/T-equipped 2003-04 Accords, 2002-04 CR-Vs, and 2003-04 Elements.

SERVICE TIP:
Has this happened to you? You've replaced the throttle body, now you start the engine, but the A/T won't shift out of Park.

If this situation strikes an all-too-familiar chord, it could be that the PCM needs to learn the relative throttle position. This is a learned value, just like idle learn. To make this happen, here's what you do:

1. Connect the HDS with version 1.012.023 or later software to the 16P DLC.

2. With the engine turned off, check the TPS sensor voltage and the relative throttle position. The TPS sensor voltage should read 0.49 volt; the relative throttle position should read 0 %.

If both the TPS sensor voltage and the throttle position are OK, then continue with normal troubleshooting.

If the TPS sensor voltage doesn't read 0.49 volt, go to step 3.

If the relative throttle position doesn��t read 0%, go to step 4.

3. TPS sensor voltage greater than 0.49 volt: Check the adjustment of the cruise control and throttle cables. If the cables are properly adjusted, then replace the throttle body, and retest.

TPS sensor voltage less than 0.49 volt: Replace the throttle body, and retest.

4. Reset the PCM with the HDS, then do the idle learn procedure.