For 1990-2009 cars

## Heated Mirrors Inoperative Both Heated Mirrors are Inop

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
DEFINITION: LH and RH outside rear view heated mirrors are inoperative.
1 | Was the Heated Mirrors System Check performed? | -- | Go to Step 2 | Go to Heated Mirror System Check
2 |

1. Remove fuse #11.
2. Turn the rear window defogger switch ON
3. Use the DMM to measure the voltage between the input side of fuse #11 and a known good ground.

Is the measured voltage within the specified value?

B+

Go to Step 4

Go to Step 3

3 |

1. Locate an open or a high resistance in circuit FM10.
2. Repair the open or the high resistance in circuit FM10.
3. Replace the heated outside rear view mirror and rear window defogger relay if circuit FM10 is OK.

Is the repair and/or replacement complete?

--

Go to Step 9

--

4 |

1. Install fuse #11.
2. Disconnect connector C500.
3. Also disconnect connector C600.
4. Press the window defogger and heated mirrors switch.
5. Use the DMM to measure the voltage between terminal 19 of both C500 and C600 and a known good ground.

Is the measured voltage within the specified value?

B+

Go to Step 6

Go to Step 5

5 |

1. Locate an open or a high resistance in circuits FM10, FM22 and/or FM100.
2. Repair the open or the high resistance in circuits FM10, FM22 and/or FM100.

Is the repair complete?

--

Go to Step 9

--

6 | Use the DMM to measure the resistance between terminal 1 of both C500 and C600 and a known good ground. Is the measured resistance less than the specified value? | 5 ohms | Go to Step 8 | Go to Step 7
7 |

1. Locate an open or a high resistance in circuits F8 and/or F9.
2. Repair the open or the high resistance in circuits F8 and/or F9.

Is the repair complete?

--

Go to Step 9

--

8 | Replace the LH and RH outside rear view mirrors. Refer to Power Mirror Replacement in Doors. Is the replacement complete? | -- | Go to Step 9 | --
9 |

1. Connect all connectors and components that were disconnected.
2. Verify that the LH and RH outside rear view heated mirrors operate properly.

Do the LH and RH outside rear view heated mirrors operate properly?

--

System OK

Go to Step 1