Inspect Hazard Warning Signal Switch

(a) Check the resistance.

(1) Using an ohmmeter, measure the resistance and check the results in accordance with the value(s) in the table below. Standard Resistance

Tester Connection


Specified Condition

4 - 15


10 kQ or higher

4 - 15


Below 1 Q

3 - 13

Illumination circuit

Below 1 Q

If the result is not as specified, replace the hazard warning signal switch. (b) Check the illumination operation.

(1) Connect the positive (+) battery lead to terminal 13 and the negative (-) battery lead to terminal 3, then check that the illumination illuminates. Standard:

Illumination illuminates. If the illumination does not illuminate, replace the hazard warning signal switch.

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