Windows and Glass

B2121 Left Horizontal Potentiometer. Short to B+

B2121 Left Horizontal Potentiometer. Open Circuit / Short to Ground

B2122 Left Vertical Potentiometer. Short to B+

B2122 Left Vertical Potentiometer. Open Circuit / Short to Ground





Fault symptoms
Memory setting does not work.

Condition
Open circuit/shorting to ground. Short-circuit to B+.

Check the wiring
Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short-circuits in the leads.
Observe the multimeter, test lamp or diagnostic tool during the test.

Diagnostic help
A reading of the voltage across the potentiometers can be obtained with the diagnostic tool