For 1990-2009 cars

## Fasten Safety Belt Indicator/Chime Inoperative Buick

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Audible Warnings System Check? | -- | Go to Step 2 | Go to Audible Warnings System Check
2 |

1. Turn the ignition switch to OFF.
2. Disconnect the instrument cluster connector C1.
3. Measure the resistance from the instrument cluster connector C1 terminal E12 and terminal F12 to ground.

Does the resistance measure less than the specified value?

10 V

Go to Step 3

Go to Step 7

3 |

1. Turn the ignition switch to RUN.
2. Measure the voltage from the instrument cluster connector C1 terminal F3 to ground.

Does the measured voltage equal the specified value for approximately 1 minute after you turn the ignition switch to RUN?

10-15 V

Go to Step 8

Go to Step 4

4 | Inspect CKT 234 (YEL) for an open. Is the circuit OK? | -- | Go to Step 5 | Go to Step 7
5 | Inspect the body control module (MALL) connector C2 for proper terminal contact. Is the contact OK? | -- | Go to Step 6 | --
6 | Replace the MALL module. Is the repair complete? | -- | Go to Audible Warnings System Check | --
7 | Repair the open. Is the repair complete? | -- | Go to Audible Warnings System Check | --
8 | Replace the fasten seat belts indicator. Is the repair complete? | -- | Go to Audible Warnings System Check | --

## Fasten Safety Belt Indicator/Chime Inoperative Oldsmobile

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Audible Warnings System Check before processing? | -- | Go to Step 2 | Go to Audible Warnings System Check
2 |

1. Turn the ignition switch to OFF.
2. Disconnect the instrument cluster connector C1.
3. Measure the resistance from the instrument cluster connector C1 terminal E12 and terminal F12 to ground.

Does the resistance measure less than the specified value?

10 V

Go to Step 3

Go to Step 7

3 |

1. Turn the ignition switch to RUN.
2. Measure the voltage from the instrument cluster connector C1 terminal F3 to ground.

Does the measured voltage equal the specified value for approximately 1 minute after you turn the ignition switch to RUN?

10-15 V

Go to Step 8

Go to Step 4

4 | Inspect CKT 234 (YEL) for an open. Is the circuit OK? | -- | Go to Step 5 | Go to Step 7
5 | Inspect the body control module (MALL) connector C2 for proper terminal contact. Is the contact OK? | -- | Go to Step 6 | --
6 | Replace the MALL module. Is the repair complete? | -- | Go to Audible Warnings System Check | --
7 | Repair the open. Is the repair complete? | -- | Go to Audible Warnings System Check | --
8 | Replace the fasten seat belts indicator. Is the repair complete? | -- | Go to Audible Warnings System Check | --