TROUBLESHOOTING FLASH CODE 28
6. Stop engine.
7. Read inactive codes.
[a] If no codes are displayed, troubleshooting is complete.
[b] If code 172/4 is logged with any other codes, all system diagnostics are complete.
Review this section from the first step to find the error.
[c] If code 172/4 is not logged, but other codes are logged, refer to section 9.1.
All information subject to change without notice.
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