Operation CHARM: Car repair manuals for everyone.

Anti-Lock Brake System Diagnosis



Tools

1. Porsche System Tester 2 with integrated digital multimeter.







2. When performing measurements on the control module connector with a multimeter, use measuring leads (e.g. commercially available leads from Messrs. Bosch or shop-made leads) in order to avoid damaging the contacts in the control module connector.

Normal pins:
1 to 2 measuring leads with 2.5 mm flat connectors.

Mini pins:
1 to 2 measuring leads with 1.6 mm flat connectors.

Connecting Porsche System Tester 2
The diagnostic socket (arrow) to which the Porsche System Tester 2 is connected is located in the driver's footwell (left-hand drive vehicles) or passenger's footwell (right-hand drive vehicles) near the fuse box.







Function selection (menu selection), ABS 5.3 and ABS/TC 5.3

Overviews of available menus
- Identification Identification: Display of the diagnosis software number and the control module part number.
- Fault memory
- Erase fault memory
- Drive links
- Actual values
- Input signals
- Static test
- Bleed*
- Coding (extract / modify)*

* In the case of ABS 5.3 (Solo ABS), the menus are not necessary and are therefore not present.