what does P3002 mean - Toyota Prius Forum : Prius Online Toyota Forums
User Tag List

 
LinkBack Thread Tools
post #1 of 2 (permalink) Old 10-13-2007, 06:56 PM Thread Starter
Senior Member
 
Join Date: Aug 2004
Posts: 112
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Send a message via AIM to statultra
(Thread Starter)
Default what does P3002 mean

My sister went to dealer and got the code
P3002 HV Serial Communication
what does this mean

My toyota fleet, 01 prius,05 prius, 06 tacoma, 04 scion xa
statultra is offline  
Sponsored Links
Advertisement
 
post #2 of 2 (permalink) Old 10-16-2007, 08:55 PM
Senior Member
 
Join Date: Jun 2007
Posts: 149
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Default

This is from the 2001 Prius Diagnostic Section for the HV Battery ECU:

"No serial signals transmitted from HV ECU"
"Trouble Area-Communications bus line/HV ECU"
"Check for open and short in wire harness between HV ECU and Battery ECU"

Bus connection at the HV ECU is
H13 pin2 (White HTD+)
H13 pin20 (Black HTD-)

Bus connector at the Battery ECU is
B17 pin 6 (White HTD+)
B17 pin 7 (Black HTD-)

There is an intermediate junction connector IF2 where HTD+ is pin 1 and HTD- is pin 2. IF2 is on the fire wall where the little panel at the hinge of the drivers side door pulls out. It is not one of the accessible junction block connectors, but is the 6 pin connector on the fire wall way deep in. Chances are you have a loose or corroded connector/pin. Ensure that they are all clean as well as checking for opens or shorts.

the HTD probably stands for HV To Battery ECU. There is a pair of signals called DTH for the reverse signal path, but this apparently must be working. The manual also states to stop all operation of "optional electric products" to ensure EMI interference is not causing the problem.

2001 Prius/2007 Prius
FL_Prius_Driver is offline  
Reply

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome