Testing

Pull off plug (S2| on control unit.

Connect ohmmeter between plug term. 4 (yellow) and 12 (blue). Ohmmeter range: x 100.

The ohmmeter should display any random resistance value.

Move the temperature control lever from 18° to 30° to 18°. The displayed resistance value must change (approx. 1000 ohms).

No resistance value change: see section B4.

Ohmmeter displaying«« ohms: break in the sensor system.

Testing Procedures:

Note: Breaks could be on the wire connections, on plug connections (4), (5), (B2), on inside sensor or outside sensor as well as on the control switch.

Porsche Classic Models

Porsche Classic Models

The History of Porsche Cars through its generational changes. A must have ebook for any Porsche fanatic, this ebook is a reference book for Porsche enthusiasts. Discover all there is to know about the greatest Porsches ever made. All models are fully described and illustrated providing a definitive production history plus an accurate guide to original specs and equipment.

Get My Free Ebook


Post a comment