DTC B1006 RH Side Air Bag Loop Resistance Low. Opel Sintra 1999

For 1990-2009 cars
SIR Components
SIR Schematics
Handling ESD Sensitive Parts Notice
SIR Caution

### Circuit Description

When you first turn the ignition switch to the RUN position, the inflatable restraint sensing and diagnostic module (SDM) performs tests to diagnose critical malfunctions within itself. Next the SDM measures IGNITION and the deployment loop voltages to make sure they are within their respective normal voltage ranges. Then the SDM proceeds with the RESISTANCE MEASUREMENT test. During one portion of the RESISTANCE MEASUREMENT test, the SDM does the following:

• | Grounds the Passenger Side Low terminal 14 through an internal current sink.

• | Connects the Passenger Side High terminal 13 to an internal constant current source. This current produces proportional voltage drops in the deployment loop.

• | Measures the voltage difference between Passenger Side High and Passenger Side Low.

• | Calculates the resistance of the passenger side air bag deployment loop using the measured voltage.

### Conditions for Setting the DTC

• | The passenger side air bag deployment loop is not open.

• | The passenger side air bag deployment loop is not shorted to voltage.

• | The passenger side air bag deployment loop is not shorted to ground.

• | The passenger side air bag deployment loop resistance is less than 1.52 ohms. The passenger side air bag deployment loop consists of the following components:

- | Inflatable restraint passenger seat module.

- | Harness wiring of CKT 2135.

- | Harness wiring of CKT 2136.

- | Connector terminal contact.

The RESISTANCE MEASUREMENT test checks for this malfunction. This test only occurs once each ignition cycle when IGNITION is within the normal operating voltage range.

### Action Taken When the DTC Sets

• | The SDM sets a DTC B1006.

• | The SDM turns ON the AIR BAG warning lamp.

### Conditions for Clearing the DTC

• | Current DTC

| The resistance of the passenger side air bag deployment loop is more than 1.72 ohms and the ignition switch is cycled.

• | History DTC

- | You issue a scan tool CLEAR CODES command.

- | Once 250 malfunction free ignition cycles have occurred.

When you issue a scan tool CLEAR CODES command and the malfunction is still present, the DTC will not reappear until the next ignition cycle.

### Diagnostic Aids

The following can cause an intermittent condition:

• | A short between CKT 2135 and CKT 2136.

• | A malfunctioning shorting bar on the inflatable restraint front side impact module (RH) yellow 2-way connector.

The diagnostic table directs the technician to note the entry value of RH SIDE AIR BAG RESIST. Comparing the value of RH SIDE AIR BAG RESIST. over multiple ignition cycles can be helpful in determining if an intermittent condition exists.

When measurements are requested in this table, use J 39200 Digital Multimeter with the correct terminal adapter from J 35616 Connector Test Adapter Kit. When a check for proper connection is requested, refer to Intermittents and Poor Connections . When a wire, connector or terminal repair is requested, use J-38125 Terminal Repair Kit and refer to Wiring Repair .

### Test Description

The numbers below refer to the step numbers on the diagnostic table:

1. This step checks the inflatable restraint front side impact module (RH) yellow 2-way wiring harness connector for corrosion or damaged terminals.

2. This step isolates the malfunction to one side of the inflatable restraint front side impact module (RH) yellow 2-way connector.

3. This step checks the SDM wiring harness connector for corrosion or damaged terminals.

4. This step determines if there is a short between CKT 2135 and CKT 2136 or if there is a malfunctioning SDM.

#### DTC B1006 Passenger Side Air Bag Deployment Loop Resistance Low

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Was the SIR Diagnostic System Check performed? | -- | Go to Step 2 | Go to SIR Diagnostic System Check

2

1. Turn the ignition switch to the OFF position.
2. Install the scan tool.
3. Turn the ignition switch to the RUN position.
4. Use the scan tool to request the SIR data list display.
5. Read and record on the repair order the passenger side air bag deployment loop resistance RH SIDE AIR BAG RESIST.

Has RH SIDE AIR BAG RESIST. been read and recorded on the repair order?

--

Go to Step 3

--

3

1. Turn the ignition switch to the OFF position.
2. Disconnect the inflatable restraint front side impact module (RH) and passenger seat belt pretensioner yellow 2-way connectors.
3. Check for a proper connection at terminal A and terminal B on the wiring harness side of the inflatable restraint front side impact module (RH) yellow 2-way connector.

Are the terminals damaged or corroded?

--

Go to Step 4

Go to Step 6

4 | Replace the inflatable restraint front side impact module (RH) yellow 2-way wiring harness connector. Refer to Wiring Repair . Is the repair complete? | -- | Go to Step 5 | --
5 | Check for a proper connection at terminal A and terminal B of the inflatable restraint front side impact module (RH) yellow 2-way connector. Are the terminals damaged or corroded? | -- | Go to Step 7 | Go to Step 19
6 | Check for a proper connection at terminal A and terminal B of the inflatable restraint front side impact module (RH) yellow 2-way connector. Are the terminals damaged or corroded? | -- | Go to Step 7 | Go to Step 8
7 | Replace the inflatable restraint front side impact module (RH). Refer to Driver and Passenger Seat Side Inflatable Restraint Module Replacement . Is the repair complete? | -- | Go to Step 19 | --

8

1. Reconnect the inflatable restraint front side impact module (RH) and passenger seat belt pretensioner yellow 2-way connectors.
2. Turn the ignition switch to the RUN position.
3. Use the scan tool to request the SIR data list display.
4. Read the passenger side air bag deployment loop resistance RH SIDE AIR BAG RESIST.

Is RH SIDE AIR BAG RESIST. less than the specified value?

1.52 ohms

Go to Step 10

Go to Step 9

9

1. Turn the ignition switch to the OFF position.
2. Replace the inflatable restraint front side impact module (RH) yellow 2-way wiring harness connector. Refer to Wiring Repair .

Is the repair complete?

--

Go to Step 19

--

10

1. Turn the ignition switch to the OFF position.
2. Disconnect the inflatable restraint front side impact module (RH) and passenger seat belt pretensioner yellow 2-way connectors.
3. Connect the J 38715-A SIR Driver/Passenger Load Tool STEERING COLUMN and PASSENGER INFLATOR yellow 2-way connectors to the wiring harness connectors.
4. Turn the ignition switch to the RUN position.
5. Use the scan tool to request the data list display.
6. Read the passenger side air bag deployment loop resistance RH SIDE AIR BAG RESIST.

Is RH SIDE AIR BAG RESIST. less than the specified value?

1.52 ohms

Go to Step 12

Go to Step 11

11

1. Turn the ignition switch to the OFF position.
2. Replace the inflatable restraint front side impact module (RH). Refer to Driver and Passenger Seat Side Inflatable Restraint Module Replacement .

Is the repair complete?

--

Go to Step 19

--

12

1. Turn the ignition switch to the OFF position.
2. Disconnect the inflatable restraint sensing and diagnostic module (SDM). Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement .
3. Disconnect the J 38715-A .
4. Check for a proper connection at terminal 13 and terminal 14 of the SDM wiring harness connector.

Is the SDM wiring harness connector damaged or corroded?

--

Go to Step 13

Go to Step 15

13 | Replace the SDM wiring harness connector. Refer to Wiring Repair . Is the repair complete? | -- | Go to Step 14 | --
14 | Check for a proper connection at terminal 13 and terminal 14 on the SDM. Are the terminals damaged or corroded? | -- | Go to Step 16 | Go to Step 19
15 | Check for a proper connection at terminal 13 and terminal 14 on the SDM. Are the terminals damaged or corroded? | -- | Go to Step 16 | Go to Step 17
16 | Replace the SDM. Refer to Inflatable Restraint Sensing and Diagnostic Module Replacement . Is the repair complete? | -- | Go to Step 19 | --

17

1. Insert the J 42113 SIR Shorting Bar Tool into the SDM wiring harness connector above terminal 13 and terminal 14.
2. Zero the J 39200 Digital Multimeter (DMM).
3. Use the J 39200 to measure the resistance between terminal A and terminal B of the inflatable restraint front side impact module (RH) yellow 2-way wiring harness connector.

Is the measured resistance less than the specified value?

OL

Go to Step 18

Go to Sensing and Diagnostic Module Integrity Check

18

1. Locate a short between CKT 2135 and CKT 2136.
2. Repair the short between CKT 2135 and CKT 2136.

Is the repair complete?

--

Go to Step 19

--

19 | Reconnect all the SIR components, making sure all the components are properly mounted. Have all the SIR components been reconnected and properly mounted? | -- | Go to Step 20 | --
20 | Use the scan tool to clear all current and history SIR DTCs. Have all current and history SIR DTCs been cleared? | -- | Go to SIR Diagnostic System Check | --