For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
DEFINITION: The body control module (BCM) has 4 selectable interior lighting modes:

1. Mode 1

Exit lighting and delayed illumination are disabled.

2. Mode 2

Exit lighting is disabled, delayed illumination is enabled.

3. Mode 3

Exit lighting is enabled, delayed illumination is disabled.

4. Mode 4

Exit lighting and delayed illumination are enabled.

Delayed illumination activates the interior courtesy lights for 25 seconds after the last door is closed when the following conditions exist:

• | The ignition switch is in the LOCK position, the OFF position or the ACC position.

• | The interior lamps override switch is on (the interior courtesy lights are enabled).

Exit lighting activates the interior courtesy lights for 25 seconds upon removing the key from the ignition switch and the interior lamps override switch is on (interior courtesy lights enabled).

When the interior lighting modes do not operate as specified, this table assists in the diagnosis of a condition.

1 | Did you perform the Lighting Diagnostic System Check? | -- | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems
2 |

1. Turn the ignition switch to the RUN position.
2. Lower the driver's window in order to prevent lockout.
3. Close all of the vehicle's doors.
4. Turn off the instrument panel (IP) dimmer switch.
5. Turn on the interior lamps override switch (interior courtesy lights enabled).

Are the interior courtesy lights OFF?

--

Go to Step 3

Go to Courtesy Lamps Always On

3 | Turn the IP dimmer switch to the DOME position. Did the interior courtesy lamps light? | -- | Go to Step 4 | Go to Courtesy Lamps Inoperative with Instrument Panel Dimmer Switch
4 |

1. Turn the ignition switch to the LOCK position.
2. Leave the key in the ignition switch.
3. Open any of the doors.

Does the key in ignition chime sound?

--

Go to Step 5

Go to Key-in-Ignition Chime Inoperative in Instrument Panel, Gauges and Console

5 |

1. Turn off the IP dimmer switch.
2. Close all of the doors.
3. Remove the BCM PRGRM fuse.
4. Turn the ignition switch to the ACC position.

When you turn the ignition switch to the ACC position, does the chime sound the BCM type? (1, 2, 3 or 4 chimes)

--

Go to Step 6

Go to Body Control Module Inoperative

6 | Turn the IP dimmer switch from OFF to DOME then back to OFF. The BCM chimes 1, 2, 3 or 4 times. The number of chimes indicates the current lighting mode. Does the BCM sound 1-4 times? | -- | Go to Step 7 | Go to Step 10
7 |

1. Perform the following procedure in order to set the lighting mode to mode 4:

1.1. | Turn the IP dimmer switch from OFF to DOME, then back to OFF several times in order to advance the modes.

1.2. | Stop this action when you hear 4 chimes.

2. Turn the ignition switch to the LOCK position.
3. Replace the BCM PRGRM fuse.
4. Close all of the vehicle's doors.
5. Turn off the IP dimmer switch.
6. Turn the ignition switch from LOCK to RUN, then back to LOCK.
7. Remove the key from the ignition switch and observe the interior courtesy lights.

Do the interior courtesy lamps light for 25 seconds when you remove the key from the ignition?

--

Go to Step 8

Go to Step 10

8 | Open and close any door and observe the interior courtesy lights. Did the interior courtesy lamps light for 25 seconds when you closed the last door? | -- | Go to Step 9 | Go to Step 10
9 |

1. Turn the ignition switch from LOCK to RUN, then back to LOCK.
2. Open and close any of the doors.
3. While observing the interior courtesy lights, turn the ignition switch to the RUN position.

Did the interior courtesy lamps light turn off upon turning the key to the RUN position?

--

Go to Diagnostic System Check - Lighting Systems

Go to Step 10

10 |

1. Inspect the body control module (BCM) connectors for poor terminal contact. Repair the connectors as needed.
2. Replace the BCM if the BCM connectors are OK.

Did you complete the repair?

--

Go to Diagnostic System Check - Lighting Systems

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