If your DIAG module is the same as mine ('94), 26 blinks means: Upshift delay 1 -> 2 (124.034 only), 2 ->3 (all models).

The upshift delay switchover valve (Y3/3) operates from a control signal from the LH control unit (N3/1) and puts vacuum on the the upshift delay element (transmission).

Most likely, there's a problem with the vacuum line or the Y3/3 valve.

[Edited by JimF on 04-10-2001 at 09:07 PM]

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Regards . . . . JimF
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'94 S500 Cpe

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