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Old 05-22-2008, 12:19 PM
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JimF JimF is offline
'94 S500: only 793 sold!
 
Join Date: Mar 2001
Location: San Diego, CA
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Quote:
Originally Posted by gsxr View Post
For those still wondering what I'm talking about, see the attached screen shot... the LED blinker just shows code 2, but with a HHT (hand held tester / scanner), you can pinpoint which of the six sub-codes caused the fault (002, 006, 007, 007, 009, or 025).
The HTT is a 'poor' tool . . quote from a senior MB tech . .

This table shows that it's not an "infallible" tool for diagnosing EA problems just as a normal scanner (AST Retreiver, etc) isn't. It give ambiguous codes as the table below shows.

The sub-codes are shown (and read if at fault) in subsequent DTCs in most scanners.

So if you think the "HHT" will point to the 'culprit', you'll be dissapointed!
Attached Thumbnails
Recommendation for Code Reader/Scanner-hht-v-scanner.jpg  
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