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Home >> Porsche >> 2011 >> Boxster Base, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> 90 - Instruments -- 987-BOXSTER-CAYMAN >> WM 902219 Removing And Installing Stopwatch (All Models) >> Programming Stopwatch >> Coding Stopwatch

Coding Stopwatch

NOTE: Voltage drop
  • Risk of irreparable damage to control unit
  • Risk of damage to control unit
  • Fault entries in the control unit
  • Coding in the control unit is aborted
  • Malfunctions in control unit, even during programming

→ Prior to disconnecting the control unit, switch off the ignition and remove the ignition key.

→ Ensure that the power supply is not interrupted during programming.

→ Connect a battery charger with a current rating of at least → Nominal value: 40 A  to the vehicle battery.

NOTE: Voltage drop
  • Risk of irreparable damage to control unit
  • Risk of damage to control unit
  • Fault entries in the control unit
  • Coding in the control unit is aborted
  • Malfunctions in control unit, even during programming

→ Prior to disconnecting the control unit, switch off the ignition and remove the ignition key.

→ Ensure that the power supply is not interrupted during programming.

→ Connect a battery charger with a current rating of at least → Nominal value: 40 A  to the vehicle battery.

Information 

The PIWIS Tester 9718  instructions take precedence since the description may be different with later Tester releases.

The procedure described here has been structured in general terms; different text or additions may appear in the PIWIS Tester 9718  .

Information 

The procedure described must be applied when a control unit has to be replaced and the tester function Control unit replacement  cannot be used.

  1. Connect the PIWIS tester 9718  to the vehicle and start it. Switch on the ignition. [>>] Continue.
  2. Select the vehicle type  .
  3. Switch to the Special functions  menu and perform the vehicle handover  using the [F8] key.
  4. In the Special functions  menu, erase All fault memories  by pressing [>>].
  5. Carry out automatic search of control units.
  6. Using the [>>] key, move from the vehicle type to the list of control units.
  7. Select Stopwatch  with the cursor keys and press the [>>].

    Information 

    The codings will be optimised with later versions of the tester software; the coding scope documented here serves as a guide.

  8. Select Stopwatch  with the cursor keys and press the [>>].
    Illumination settings: Default
    Illumination off
    Time constant brighter Reference value >> 3.2
    Time constant darker Reference value >> 12.8
  9. Quit menu, check operation of stopwatch and read out fault memory.