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 the OFF position.
2. For UB3, disconnect the remote indicator bank.
3. For U23, disconnect the instrument cluster connector.
4. For U23, measure the resistance from the instrument cluster connector terminal B11 to terminal B6.
5. For UB3, measure the resistance from the remote indicator bank connector terminal 4 to terminal 3.

Does the resistance measure less than the specified value?

10 ohms

Go to Step 4

Go to Step 3

3 | Replace the fasten seat belts indicator. Refer to Instrument Cluster Warning Lamp Replacement in Instrument Panel, Gauges, and Console. Is the replacement complete? | -- | Go to Audible Warnings System Check | --
4 |

1. Turn the ignition switch to RUN.
2. For U23, measure the voltage from the instrument cluster connector terminal B11 to ground.
3. For UB3, measure the voltage from the remote indicator bank connector terminal 4 to ground.

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

10-15 V

Go to Step 9

Go to Step 5

5 | Inspect CKT 234 (YEL) for an open or short to ground. Is the circuit OK? | -- | Go to Step 7 | Go to Step 6
6 | Repair the open or short to ground in CKT 234 (YEL). Refer to Repairing Damaged Wire Insulation in Wiring Systems. Is the repair complete? | -- | Go to Step 7 | --
7 | For U23 only, inspect connector C200 terminal D12 for proper terminal contact. Is the contact OK? | -- | Go to Step 8 | Go to Step 12
8 | Replace the MALL module. Refer to Multifunction Alarm, Lock and Lighting Module Replacement in Instrument Panel, Gauges and Console. Is the replacement complete? | -- | Go to Audible Warnings System Check | --
9 | Inspect CKT 1250 (BLK) for an open. Is the circuit OK? | -- | Go to Step 11 | Go to Step 10
10 | Repair the open in CKT 1250 (BLK). Refer to Repairing Damaged Wire Insulation in Wiring Systems. Is the repair complete? | -- | Go to Audible Warnings System Check | --
11 |

• | For U23, inspect the instrument cluster connector terminal B6 and terminal B11 for proper terminal contact.

• | For UB3, inspect the information center connector terminal 3 and terminal 4 for proper terminal contact.

Are the contacts OK?

--

Go to Audible Warnings System Check

Go to Step 12

12 | Repair the poor terminal contact. Refer to Terminal Repairs in Wiring Systems. 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? | -- | Go to Step 2 | Go to Audible Warnings System Check
2 |

1. Turn the ignition switch to the OFF position.
2. Disconnect the instrument cluster connector C2.
3. Measure the resistance from the instrument cluster connector C2 terminal E12 to terminal E13.

Does the resistance measure less than the specified value?

10 ohms

Go to Step 4

Go to Step 3

3 | Replace the fasten seat belts indicator. Refer to Instrument Cluster Indicator Warning Lamp Replacement in Instrument Panel, Gauges and Console. Is the replacement complete? | -- | Go to Audible Warnings System Check | --
4 |

1. Turn the ignition switch to the RUN position.
2. Measure the voltage from the instrument cluster connector terminal E13 to ground.
3. For UB3, measure the voltage from the information center connector terminal 4 to ground.

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

10-15 V

Go to Step 9

Go to Step 5

5 | Inspect CKT 234 (YEL) for an open or short to ground. Is the circuit OK? | -- | Go to Step 7 | Go to Step 6
6 | Repair the open or short to ground in CKT 234 (YEL). Refer to Repairing Damaged Wire Insulation in Wiring Systems. Is the repair complete? | -- | Go to Audible Warnings System Check | --
7 | Inspect the MALL module connector C2 terminal D12 for proper terminal contact. Is the contact OK? | -- | Go to Step 8 | Go to Step 12
8 | Replace the MALL module. Refer to Multifunction Alarm, Lock and Lighting Module Replacement in Instrument Panel, Gauges and Console. Is the replacement complete? | -- | Go to Audible Warnings System Check | --
9 | Inspect CKT 1250 (BLK) for an open. Is the circuit OK? | -- | Go to Step 11 | Go to Step 10
10 | Repair the open in CKT 1250 (BLK). Refer to Repairing Damaged Wire Insulation in Wiring Systems. Is the repair complete? | -- | Go to Audible Warnings System Check | --
11 | Inspect the instrument cluster connector C2 terminal E13 for proper terminal contact. Are the contacts OK? | -- | Go to Audible Warnings System Check | Go to Step 12
12 | Repair the poor terminal contact. Refer to Terminal Repairs in Wiring Systems. Is the repair complete? | -- | Go to Audible Warnings System Check | --

## Fasten Safety Belt Indicator/Chime Inoperative Pontiac

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 the OFF position.
2. Disconnect the instrument cluster connector C1.
3. For UB3, measure the resistance from the instrument cluster connector terminal B3 to terminal B8.
4. For U5O/U2F, measure the resistance from the instrument cluster connector C1 terminal A12 to terminal A14.

Does the resistance measure less than the specified value?

10 ohms

Go to Step 4

Go to Step 3

3 | Replace the fasten seat belts indicator. Refer to Instrument Cluster Indicator Warning Lamp Replacement in Instrument Panel, Gauges, and Console. Is the replacement complete? | -- | Go to Audible Warnings System Check | --
4 |

1. Turn the ignition switch to the RUN position.
2. For UB3, measure the voltage from the instrument cluster connector C1 terminal B8 to ground.
3. For U5O/U2F, measure the voltage from the instrument cluster connector C1 terminal A14 to ground.

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

10-15 V

Go to Step 9

Go to Step 5

5 | Inspect CKT 234 (YEL) for an open or short to ground. Is the circuit OK? | -- | Go to Step 7 | Go to Step 6
6 | Repair the open or the short to ground in CKT 234 (YEL). Refer to Repairing Damaged Wire Insulation in Wiring Systems. Is the repair complete? | -- | Go to Audible Warnings System Check | --
7 | Inspect connector C200 terminal D12 for proper terminal contact. Is the contact OK? | -- | Go to Step 8 | Go to Step 12
8 | Replace the MALL module. Refer to Multifunction Alarm, Lock and Lighting Module Replacement in Instrument Panel, Gauges, and Console. Is the replacement complete? | -- | Go to Audible Warnings System Check | --
9 | Inspect CKT 1250 (BLK) for an open. Is the circuit OK? | -- | Go to Step 11 | Go to Step 10
10 | Repair the open in CKT 1250 (BLK). Refer to Repairing Damaged Wire Insulation in Wiring Systems. Is the repair complete? | -- | Go to Audible Warnings System Check | --
11 |

• | Inspect connector C200 terminal D12 for proper terminal contact.

• | For UB3, inspect the instrument cluster connector terminal B3 and terminal B8 for proper terminal contact.

• | For U5O/U2F, inspect the instrument cluster connector C1 terminal A12 and terminal A14 for proper terminal contact.

Are the contacts OK?

--

Go to Audible Warnings System Check

Go to Step 12

12 | Repair the poor terminal contacts. Refer to Terminal Repairs in Wiring Systems. Is the repair complete? | -- | Go to Audible Warnings System Check | --