GM Service Manual Online
For 1990-2009 cars only

Step

Action

Values

Yes

No

Schematic Reference: Audible Warnings Schematics

DEFINITION: One or more chime functions are inoperative.

1

Did you perform the Audible Warnings Diagnostic System Check?

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Go to Step 2

Go to Diagnostic System Check - Audible Warnings

2

  1. Turn the ignition ON, with the engine OFF.
  2. Turn the radio ON.
  3. Adjust the radio balance and fade to the left front speaker.

Does the speaker operate properly?

--

Go to Step 3

Go to Speakers Inoperative - One or More in Entertainment

3

  1. Turn the ignition OFF.
  2. Install a scan tool.
  3. Turn the ignition ON, with the engine OFF.
  4. Open the driver door.
  5. With the scan tool, observe the Driver Door Ajar Sw. parameter in the Body Control Module Inputs data list.

Does the Driver Door Ajar Sw. parameter display On?

--

Go to Step 4

Go to Door Ajar Indicator Malfunction in Doors

4

  1. Turn the headlamps ON.
  2. With the scan tool, observe the Head Lamp Switch parameter in the Instrument Panel Cluster (IPC) Inputs for Analog Dash data list.

Does the Head Lamp Switch parameter display On?

--

Go to Step 5

Go to Headlamps Inoperative - Low Beams in Lighting Systems

5

With the scan tool, observe the Key In Ignition parameter in the IPC Inputs for Analog Dash data list.

Does the Key In Ignition parameter display Yes?

--

Go to Step 9

Go to Step 6

6

  1. Turn the ignition OFF.
  2. Disconnect the ignition key alarm switch.
  3. Connect a 3 ampere fused jumper between the key in ignition switch signal circuit and a good ground.
  4. Turn the ignition ON, with the engine OFF.
  5. With the scan tool, observe the Key In Ignition parameter in the IPC Inputs for Analog Dash data list.

Does the Key In Ignition parameter display Yes?

--

Go to Step 8

Go to Step 7

7

Test the key in ignition switch signal circuit for an open. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 14

8

Test the ground circuit of the ignition key alarm switch for an open. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 13

9

Is the vehicle equipped with UQ4?

--

Go to Step 10

Go to Step 16

10

  1. Turn the ignition OFF.
  2. Open the driver door.
  3. With a DMM, Measure the AC voltage from the chime module bit 1 signal circuit to the chime module bit 2 signal circuit, at the radio integration module (RIM).

Does the DMM display the specified AC voltage?

0.9-0.7 V

Go to Step 15

Go to Step 11

11

Test the chime module bit 1 signal circuit for a short to ground or for an open. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 12

12

Test the chime module bit 2 signal circuit for a short to ground or an open. Refer to Circuit Testing and to Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 16

13

Inspect for poor connections at the harness connector of the ignition key alarm switch. Refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 17

14

Inspect for poor connections at the harness connector of the IPC. refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 18

15

Inspect for poor connections at the harness connector of the RIM. refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 19

16

Inspect for poor connections at the harness connector of the radio. refer to Testing for Intermittent Conditions and Poor Connections and to Connector Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 21

Go to Step 20

17

Replace the ignition key alarm switch. Refer to Ignition Switch Replacement - On Vehicle in Steering Wheel and Column.

Did you complete the replacement?

--

Go to Step 21

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18

Important: Program the replacement IPC.

Replace the IPC. Refer to Instrument Cluster Replacement .

Did you complete the replacement?

--

Go to Step 21

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19

Replace the RIM. Refer to Radio Speaker Amplifier Replacement in Entertainment.

Did you complete the replacement?

--

Go to Step 21

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20

Replace the radio. Refer to Radio Replacement in Entertainment.

Did you complete the replacement?

--

Go to Step 21

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21

Operate the system in order to verify the repair.

Did you correct the condition?

--

System OK

Go to Step 2