Diesel Data: Automotive Repair

B1190




B1190

Horn Open circuit







Fault symptoms
Horn does not work.

Condition
Current consumption on output more than 1A.

Diagnostic help
The horn can be activated with Tech 2.
The horn switch can be read with Tech 2.

Check the wiring harness
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 diagnostics instrument during the test.