90-5Control module function · The occurence of particular system errors is stored in the event

911 Turbo (996) Instrument cluster K20 90 90-5Control module function Events Note! The occurence of particular system errors is stored in the event memory. Furthermore, it is possible to read out the time of the occurence by means of the F8 key. The time is shown in minutes. The events stored in the event memory concern components of the instrument cluster and also components of other control modules like PSM or DME. The following sytem errors are stored in the event memory: Note! During diagnosis, ABS failure and PSM failure events are entered into the event memory via communication with the PST2 and the respective warning lights are activated during the automatic control module search. In this case, no fault is present and the event mem- ory is to be erased after completion of the diagnosis. Tester display Possible causes Remedy Brake fluid ♦Brake fluid level too low ♦Check brake fluid level and top up brake fluid if necessary. Brake distributor ♦System error or system failure of the ♦Read out PSM fault memory (see PSM PSM control module diagnosis) Oil pressure too low ♦Oil pressure too low (low oil level). ♦Check oil level. Drain oil and check whether the specified oil quantity has ♦Mechanical fault of the sensor for the been filled. oil pressure indicator, oil pump faulty or malfunctions in the oil circuit ♦Check sensor for oil pressure indicator Engine temperature too ♦Coolant level too low ♦Check coolant level high ♦Malfunction in the coolant circuit ♦Read out DME fault memory (see DME diagnosis) Engine diagnosis ♦System error or system failure of the ♦Read out DME fault memory (see DME DME control module diagnosis) Valve travel control ♦System error or system failure of the ♦Read out DME fault memory (see DME DME control module diagnosis) PSM failure ♦Temporary system failure due to com- ♦Read out PSM fault memory (see PSM munication with the diagnosis tester diagnosis) ♦System error or system failure of the PSM control module ABS failure ♦System error or system failure of the ♦Read out PSM fault memory (see PSM PSM control module (ABS components) diagnosis) 9025 Control module function 90-5 page 1 Printed in Germany – 11, 2001 Sgf_xk20