GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Vivant 🢒 DTC 🢒 DTC 061

Circuit Description

When the ignition switch is first turned ON, ignition voltage is applied to the indicator lamp and also to the sensing and diagnostic module (SDM) input terminal A1. The SDM responds by flashing the instrument cluster AIRBAG indicator seven times. If the SDM cannot detect voltage on the indicator circuit, a DTC 61 will be set.

The SDM also attempts to turn on the AIRBAG indicator, but the indicator will not turn on if inputs have been correctly processed.

Conditions for Setting the DTC

DTC 61 will set when during continuous monitoring, the SDM fails to detect voltage at terminal A9, the input terminal for the AIRBAG indicator, for 500 milliseconds.

Action Taken When the DTC Sets

The SDM attempts to turn on the AIRBAG indicator, and it sets a DTC 61.

Conditions for Clearing the DTC
    • Turn OFF the ignition switch.
    • The problem is repaired.

Caution: Refer to Sensing and Diagnostic Module Voltage after Ignition is Turned Off Caution in the Preface section.

Caution: Refer to Sensing and Diagnostic Module Handling Caution in the Preface section.

Step

Action

Values

Yes

No

1

Perform the Diagnostic System Check - SIR.

Is the Diagnostic System Check complete?

--

Go to Step 2

Go to Diagnostic System Check - SIR

2

Check the instrument panel fuse F16.

Is fuse F16 blown?

--

Go to Step 3

Go to Step 4

3
  1. Check for a short circuit and repair if necessary.
  2. Replace the fuse.

Did you complete the repair?

--

Go to Diagnostic System Check - SIR

--

4
  1. Turn ON the ignition.
  2. Check the power supply to fuse F16.

Is the voltage within the specified value?

11-14 V

Go to Step 6

Go to Step 5

5

Repair the power supply to fuse F16.

Did you complete the repair?

--

Diagnostic System Check - SIR

--

6
  1. Remove the instrument cluster.
  2. Check the AIRBAG indicator bulb.

Is the bulb in good condition?

--

Go to Step 8

Go to Step 7

7

Replace the AIRBAG indicator bulb.

Did you complete the repair?

--

Go to Diagnostic System Check - SIR

--

8
  1. Turn ON the ignition.
  2. Check the voltage at the instrument cluster connector B9.

Is the voltage at B9 equal to the specified value?

11-14 V

Go to Step 10

Go to Step 9

9

Repair the open circuit between the instrument panel fuse F16 and instrument cluster connector B9.

Did you complete the repair?

--

Go to Diagnostic System Check - SIR

--

10

Test the instrument cluster printed circuit for continuity between connectors B9 and B10.

Is there continuity between B9 and B10 on the printed circuit?

--

Go to Step 12

Go to Step 11

11

Replace the instrument cluster. Refer to Instrument Cluster Replacement in I/P Gages and Concole.

Did you complete the repair?

--

Go to Diagnostic System Check - SIR

--

12
  1. Turn OFF the ignition and remove the key.
  2. Disconnect the passenger airbag, the yellow clock spring connector on the steering column, and connector C221.
  3. Disconnect the SDM electrical connector.
  4. Turn ON the ignition.
  5. Check the voltage at terminal A9 of the SDM connector.

Is the voltage equal to the specified value?

11-14 V

Go to Step 14

Go to Step 13

13

Repair the open circuit between the instrument cluster and the SDM connector terminal A9.

Did you complete the repair?

--

Diagnostic System Check - SIR

--

14
  1. Turn OFF the ignition and remove the key.
  2. Disconnect the passenger airbag, the yellow clock spring connector on the steering column and connector C221.
  3. Replace the SDM. The arrow must be pointing toward the front of the vehicle. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement .
  4. Connect all SIR components, and ensure that all components are properly mounted.

Did you complete the repair?

--

Go to Diagnostic System Check - SIR

--