For 1990-2009 cars

Step | Action | Values | Yes | No
--- | --- | --- | --- | ---
1 | Inspect fuse F7. Is the fuse open? | -- | Go to Step 2 | Go to Step 3
2 | Replace fuse F7. Did you complete the replacement? | -- | System OK | --
3 |

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

4 |

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

Did you find and correct the condition?

--

System OK

--

5 | 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
6 |

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?

--

System OK

--

7 |

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?

--

System OK

--