Preparation For Test

Preliminary Work: Diagnosis - Diagnostic Trouble Code Memory. DTCM - Diagnostic Trouble Code Memory

- Fuses OK.
- Battery voltage 11 - 14 Volts (always connect battery charger when working on the hardtop).
- Always disconnect battery ground (B-) first before disconnecting or connecting combination control module (N10-3) to avoid storage of DTC faults.
- Use vehicle specific HHT module.
- Connect HHT. Connecting Tester Or Scanner, Reading and Erasing DTC Memory

Note Regarding Testing With The HHT:
Actual values:
OPEN corresponds to 11 - 14 V.
CLOSED corresponds to 0 - 1 V.

Electrical Wiring Diagrams:
Refer to the applicable Wiring Diagram.

WARNING: Danger Of Injury.
Risk of personal injury (pinching/crushing) while working underneath pretensioned springs and or spring struts. Use only approved special tools, tensioning devices, stops etc. Visually inspect special tools for proper function and possible damage prior to performing work.

Risk of personal injury (pinching/crushing) while working on partially opened retractable hardtop. Or while hardtop de-pressurizes after 7 seconds in the rest mode, depending on the position, the hardtop will come to rest upon itself. while working on the retractable hardtop, it is important to use all special tools (stops/supports) as a safety precaution.

Risk of personal injury (pinching/crushing) and in extreme cases loss of limbs or fingers, while reaching into moving components or mechanical units. It is important that limbs, fingers and body parts be kept away from the operating areas of the moving components.

Lastly, it is important to wear safety gloves when performing the tests.

Additional Safety Notes: Prior to any testing, it is important to review and adhere to the safety notes in the "Hydraulic Test Program" as well. HTP - Hydraulic Test Program

Special Tools:

Conventional Tools, Test Equipment
Multimeter - Fluke, models 23, 83, 85, 87.
Battery charger.

Connection Diagram - Socket Box
Ignition Off.





001 Vehicle wiring harness
003 Digital multimeter
050 Socket box
078 Test harness 210 589 01 63 00
A Connector 63-pins
N10-3 Combination control module