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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 223 (Seat System) >> Diagnostic Information and Procedures >> DTC 022: Swivel In Limit Switch Remains Active After Start of Rotation Out >> Diagnostic Aids

Diagnostic Aids

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Inspect the limit switch for any physical damage or obstructions to its mechanical operation which may cause the condition.

DTC 022: Swivel In Limit Switch Remains Active After Start of Rotation Out

Step Action Yes No
Schematic Reference: Passenger Seat Schematics 
Connector End View Reference: Power Seat Systems Connector End Views 
1 Did you review the description and operation and perform the necessary inspections? Go to Step 2  Go to Symptoms - Seats 
2 Verify the fault is present.
Does the system operate normally?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3
  1. Disconnect the swivel in limit switch connector.
  2. Connect a jumper wire to the swivel in limit switch signal circuit terminal in the harness connector.
  3. While attempting to operate the seat to the facing outward position connect the jumper wire to ground.
Does the seat rotate to the outward facing position?
Go to Step 5  Go to Step 4 
4 Test the swivel in limit switch signal circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 9  Go to Step 6 
5 Test the swivel in limit switch ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 9  Go to Step 8 
6 Inspect for poor connections at the mobility seat module harness connectors. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 9  Go to Step 7 
7 Replace the mobility seat control module. Refer to Mobility Seat Control Module Replacement - Sit-N-Lift .
Is the repair complete?
Go to Step 9  -
8 Replace the mobility seat base unit. Refer to Seat Base Replacement - Sit-N-Lift .
Is the repair complete?
Go to Step 9  -
9 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 3