A/C Rotary Flaps - Sticking, Diagnosis and Repair

9220jaguar01

82-26


A/C Rotary Flaps - Sticking - Diagnosis and Repair

MODEL
All

DATE
3/92


ISSUE:

A/C rotary flaps may stick causing a constant flow of hot/cold air from either the upper or lower outlets. This can be caused by poor grounds at the microprocessor output transistors.

ACTION:





Before performing a JDS test, refer to the chart





GROUNDS


^ Disconnect and remove the A/C ECU.

^ Carefully remove the nuts and screws securing the output transistors to the ECU ground strip/heat sink.

^ Using 1000 grit (or higher) sand paper (and without lifting the transistors more than 1 mm from the ground strip/heat sink) clean the connecting surfaces.

^ Replace the screws, nuts and washers and tighten.

^ Install the A/C ECU.


WARRANTY INFORMATION:

Fault Code: 7SAN
Repair Operation Number: 82.20.65 (A/C electric control module (with JDS) - renew)
Time Allowance: Sedan 1.00 hrs. XJS 0.75 hrs.

Repair Operation Number: 82.20.65.09 (A/C electric control module (without JDS) - renew)
Time Allowance: Sedan 0.65 hrs.
XJS 0.40 hrs.