91:1 Carrera (996) Anti-lock brake system diagnosis · System test overview (ABS and ABS/TCJ

91:1 Carrera (996) Anti-lock brake system diagnosis System test overview (ABS and ABS/TCJ Note The static test must be performed at the start of the system test. Locate and remedy any detected fault. Proceed with the system test only after the static test has been completed successfully. Necessary test steps with ABS/TC 5.3 (4-channel system): Test step 1 Version coding (start of the tesVpossible only on vehicles with TC) 2 Static test 3...4 Stop-lightswitch and terminal 61 signal 5...8 MIL and information lights 9 Intake valve 10 Switch-overvalve 11 Return pump operation 12...19 ABS solenoidvalves (8 ea.jfunction and incorrect allocation) 20...23 Speed sensors (function and incorrect allocation) 24 Engine speed informationto ABSjTC control module Necessary test steps with ABS 5.3 (3-channel system): Note On vehicles with Solo ADS, the test begins with the static test (test step 2). The test steps in brackets are not necessary (possible only with a «hannel system). Teststep (1) Not necessary 2 Static test (start of test) 3.. .4 Stop-lightswitch and terminal61 signal 5 ABSMIL (6. ..10).17 Not necessary 11 Return pump operation 12.. ABS solenoidvalves (6 ea. / function and incorrect allocation) (18. ..19) Not necessary 20...23 Speed sensors (function and incorrect allocation) (24) Not necessary 45 -D 47