Schematic Reference: HVAC Schematics

Connector End View Reference: Component Connector End Views

Inspect fuse F7.

Is the fuse open?

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Go to Step 2

Go to Step 3

Replace fuse F7.

Did you complete the replacement?

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System OK

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1. Remove the controller.
2. Measure the voltage between connectors A5 and A14.

Is the voltage within the specified range?

11-14 V

Go to Step 4

Go to Step 5

1. Inspect the controller for damage.
2. Replace the controller if it is damaged.

Did you find and correct the condition?

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System OK

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Measure the voltage between terminal A1 and round.

Is the voltage equal to the specified valve?

0 V

Go to Step 6

Go to Step 7

1. Inspect the wiring harness between fuse F7 and the terminal A5 for damage.
2. Replace the wiring harness if it is damaged.

Did you find and correct the condition?

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System OK

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1. Inspect the wiring harness between terminal A14 and ground G203 for damage.
2. Repair the wiring harness, or ground connection as required.

Did you find and correct the condition?

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System OK

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