The Power Lumbar Is Inoperative - Driver

• WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.

  Ignition OFF.

• Disconnect: Driver Side Airbag In-line C3368  .
• Disconnect: Driver Seat Lumbar Motor C3215  .
• NOTE: The voltage being measured changes polarity depending upon which direction the seat control switch is activated.

  While pushing the lumbar switch in both directions, measure:

  Positive Lead	Measurement/Action	Negative Lead
  C3215-A		C3215-B

Is the voltage greater than 11 volts when the seat control switch is operated in both directions? 

1. Yes  : INSTALL a new driver seat power lumbar assembly.

   REFER to: FRONT SEAT POWER LUMBAR ASSEMBLY  .

   GO to  D3

2. No  : GO to  D3

• Disconnect: Driver Seat Control Switch C3387  .
• Measure:

  Positive Lead	Measurement/Action	Negative Lead
  C3387-2		C3215-B
  C3387-6		C3215-A

Are the resistances less than 3 ohms? 

1. Yes  : INSTALL a new driver seat control switch.

   REFER to: FRONT SEAT CONTROL SWITCH  .

   GO to D3 

2. No  : REPAIR the circuit in question. GO to D3 

• WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.

  Ignition OFF.

• Connect: Driver Side Airbag In-line C3368  .
• Connect all previously disconnected connectors.
• Ignition ON.
• Using a diagnostic scan tool, clear the RCM  Diagnostic Trouble Codes (DTCs).
• Cycle the ignition OFF then ON.
• Using a diagnostic scan tool, perform RCM  self-test.

Are any RCM Diagnostic Trouble Codes (DTCs) retrieved during self-test? 

1. Yes  : REFER to: AIRBAG SUPPLEMENTAL RESTRAINT SYSTEM (SRS) .
2. No  : Repair is complete. RETURN the vehicle to the customer.