For 1990-2009 cars

Step | Action | Values | Yes | No
--- | --- | --- | --- | ---
1 | Inspect the F12 fuse. Is the F12 fuse open? | -- | Go to Step 2 | Go to Step 3
2 | Replace the F12 fuse. Is the repair complete? | -- | System OK | --
3 |

1. Remove the controller.
2. Measure the voltage between connectors A5 and A 14.

Is the voltage within the specified value?

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.

Is the repair complete?

--

System OK

--

5 | Measure the voltage between terminal A1 and the ground. Is the voltage as specified? | 0 V | Go to Step 6 | Go to Step 7
6 |

1. Inspect the wiring harness between fuse F12 and the terminal A5 for damage.
2. Replace the wiring harness if it is damaged.

Is the repair complete?

--

System OK

--

7 |

1. Inspect the wiring harness between terminal A14 and ground G205 for damage.
2. Repair the wiring harness, or ground connection as required.

Is the repair complete?

--

System OK

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