DME 7.8 DME 7.8 0 · 0-P1748P1748

DME 7.8 DME 7.8 0 0-P1748P1748 Tiptronic (Control solenoid valve, shifting pressure) Diagnostic conditions • Ignition on Possible cause of fault ♦The Tiptronic control module has detected a malfunction. Note! ♦The fault is diagnosed in the Tiptronic control unit. OBDII relevant fault codes are sent to the DME control module via the CAN drive. In the process the Tiptronic fault codes are converted to P-code! ♦Fault management and any activation of the Check Engine lamp is done by the DME control module! Affected terminals - Diagnosis/troubleshooting Note! ♦The fault codes stored in the Tiptronic control unit for this P code are to be taken from the following table. ♦For in-depth troubleshooting see Rep. Gr. 3701; Tiptronic diagnosis in the On-Board Diagnosis Manual (OBD II), Tiptronic, Boxster (986), 911 Carrera (996), 911 Turbo (996) Note! This fault code "P1748" is only output by the DME of the 911 (996) Turbo of model year 2001. In the extended fault memory of the Tip- tronic control unit, the currently valid P code "P0778" is generated by the 9588 Porsche System Tester ll. P code Fault code Fault text Fault effect P1748 7 Control solenoid valve, shifting pres- Control unit in limp-home mode, mini- = sure mum cycle initiated P0778 2470 P1748 0-P1748 page 1 Printed in Germany – 14, 2003 p1748