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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 41 (Power Seat System) >> Diagnostic Information and Procedures >> Lumbar Support Inoperative (w/Memory-A45) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, verify that none of the Driver Position Module Lumbar Switch parameters are Active while the switch is in an inactive state.
    • If any of the switch parameters are Active, perform the Switch Circuit Test.
  2. Observe the scan tool Driver Position Module Lumbar Switch parameters while pressing the related lumbar switch. The reading should change between Inactive and Active.
    • If any of the Lumbar Switch parameters are not Active, perform the Switch Circuit Test.
  3. If all lumbar switch inputs to the MSM function normal, preform the Motor Control Circuit Test.
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