For 1990-2009 cars

### Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform turn-on test to diagnose critical malfunctions within SDM itself.

Upon passing these test ignition and deployment loop voltages are measured to ensure that they are within their normal voltage ranges. The SDM monitors the voltages at the driver low and the passenger low to detect shorts to ground or voltage in the deploy loops.

### DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC B1415 RF Side Impact Sensor Incorrect Component Installed

### Conditions for Running the DTC

Ignition voltage is within the normal operating voltage range.

### Conditions for Setting the DTC

The sensor for communication between the SDM and the right side impact sensor is not identified.

### Action Taken When the DTC Sets

The SDM commands the AIR BAG indicator ON.

### Conditions for Clearing the DTC

The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.

Step | Action | Yes | No
--- | --- | --- | ---
Caution: Refer to Sensing and Diagnostic Module Handling Caution in the Preface section. Caution: Refer to Sensing and Diagnostic Module Voltage after Ignition is Turned Off Caution in the Preface section. Schematic Reference: SIR Schematics Connector End View Reference: SIR Connector End Views
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle
2 |

1. Confirm the ignition switch is OFF.
2. Wait for 1 minute for the sensing and diagnostic module (SDM) charger to be discharged.

Has the SDM discharged?

Go to Step 3

--

3 | Visually inspect any damage for the right side impact sensor wiring. Is the right side impact sensor wiring damaged? | Go to Step 4 | Go to Step 5
4 | Replace the impact sensor wiring. Is the replacement complete? | Go to Step 6 | --
5 | Replace the right side impact sensor. Refer to Inflatable Restraint Side Impact Sensor Replacement. Is the replacement complete? | Go to Step 6 | --
6 |

1. Reconnect all SIR components.
2. Verify that all components, connectors and connector position assurances (CPAs) are properly mounted.
3. Use the scan tool in order to clear the DTCs.
4. Operate the vehicle within the Conditions for Running the DTC, as specified in the supporting text.

Does the DTC reset?

Go to Step 2

System OK