System test Possiblecauses,elimination, notes · Test step 4

911 Carrera (996) Anti-lock brake system diagnosis System test Possiblecauses,elimination, notes Test step 4 Call up Input signals menu For troubleshooting,the status of terminal 61 (present or not present) and select terminal 61 signal. also can be checked in the system "Alarm system" via the Input signals Start the engine. menu. Requireddisplay: Signal 1. If "not present" appears in the Tester display with the enginerunning, present (engine not running: call up the system "Alarm system" and also check the status of not present). terminal 61 there in the Input signalsmenu. If the signal is presentthere, the fault lies in the wire between the ABS control module and the other control module. For trouble- shooting, consult the wiring diagram. If the terminal 61 signal is also not present with the system "Alarm system", continue with the next point. 2. Bulb of Generator(MIL)in the instrumentcluster faulty. Perform a lamp test (lamp must light up when the ignition is switched on). 3. Check the generator. Test step 5 Call up the Drive links menu 1. Check bulb and activate the ABS MIL. 2. Check wiring betweenthe instrumentcluster and control module The display must flash. according to the wiring diagram. With the ABS;rC, the TC-MIL is activated as well Test step 6 Activate the TC-MILin the Onlyon vehicles with TC. Drive links menu. For vehicles with Solo ABS, continue with test step 11 The display must flash. Troubleshootinganalogousto test step 5 45 02 Diagnosis/Troubleshooting 45 -D 49 Printed in Germany -12, 1998 99645D39