Circuit/System Testing

NOTE:

When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.

S48B Multifunction Switch - Overhead Console.
K36 Inflatable Restraint Sensing and Diagnostic Module

Ignition OFF, disconnect the harness connector at the S48B Multifunction Switch - Overhead Console.
Test for less than 10 Ω between the ground circuit terminal 19 and ground.
- If 10 Ω or greater
1. Ignition OFF.
2. Test for less than 2 Ω in the ground circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, repair the open/high resistance in the ground connection.
- Go to next step: If less than 10 Ω
Passenger seat occupied.
Test for less than 11 V between the control circuit terminal 13 and ground.
- If 11 V or greater
1. Ignition OFF.
2. Disconnect the harness connector at the K36 Inflatable Restraint Sensing and Diagnostic Module.
3. Ignition ON.
4. Test for less than 1 V between the control circuit and ground.
  - If 1 V or greater, repair the short to voltage on the circuit.
  - If less than 1 V, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.
- Go to next step: If less than 11 V
Test for greater than 25 Ω between the control circuit terminal 13 and ground.
- If 25 Ω or less
1. Disconnect the harness connector at the K36 Inflatable Restraint Sensing and Diagnostic Module.
2. Test for infinite resistance between the control circuit and ground.
  - If less than infinite resistance, repair the short to ground on the circuit.
3. Test for less than 2 Ω in the control circuit end to end.
  - If 2 Ω or greater, repair the open/high resistance in the circuit.
  - If less than 2 Ω, replace the K36 Inflatable Restraint Sensing and Diagnostic Module.
- Go to next step: If greater than 25 Ω
Test or replace the S48B Multifunction Switch - Overhead Console.