Introduction
Component testing procedures are provided to determine whether a component is good or bad.
Testing information for each component includes a schematic, a view of the terminal locations and step-by-step test procedures. Terminal locations are identified by numbers or letters that may be on the component or next to it.
Scheme 6
The component connector MUST BE REMOVED before testing. To test a single circuit within the component, select that circuit under the column "Circuit to test". If you wish to test the complete component, perform all tests.
Connect the tester to the terminals shown in the second column and operate the component as shown in the third column.
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Scheme 13
Disconnect the ohmmeter; connect pin 6 using a fused (10A) jumper to 12V DC power and pin 4 to ground. Measure the voltage between pin 1 and pin 4 while rotating the thumbwheel from full illumination to no illumination. If the voltage smoothly decreases from near 12 volts to near 0 volts, the illumination dimmer is okay. If not, replace the main light switch.
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Scheme 43
Disconnect the ohmmeter; connect pins 30 and 85 to 12V DC power and pin 86 to ground. Measure voltage between pin 87 and pin 86. If the voltage is 12V, continue with the test. If not, replace the relay. Disconnect power from pin 85 and measure voltage between pin 87a and pin 86. If the voltage is 12V, the relay is okay. If not, replace the relay.
Scheme 44
Disconnect the ohmmeter; connect pins 2 and 3 to 12V DC power and pin 1 to ground. Measure voltage between pin 5 and pin 1. If the voltage is 12V, continue with the test, If not, replace the relay. Disconnect power from pin 2 and measure voltage between pin 4 and pin 1. If the voltage is 12V, the relay is okay. If not, replace the relay.