GM Service Manual Online
For 1990-2009 cars only

DTC Descriptor

DTC 1010 08: System Sensors Data Mismatch signal invalid

Circuit/System Description

DTC B1010 08 sets when the FTC Module detects a switch is not in the proper state when compared to other switches. The conditions that cause DTC B1010 08 to set may also set other Folding Top DTCs. The position and direction of the folding top when the fault occurs will determine whether DTC B1010 08 will set or another Folding Top DTC will set. If any Folding Top DTCs between DTC B1296 - DTC B3685 are set, diagnose those DTCs first. After diagnosing any other Folding Top DTCs, clear DTCs and operate the Folding Top to see if DTC B1010 08 resets before diagnosing it.

Conditions for Running the DTC

When the Folding Top Control (FTC) module is active and being commanded to move.

Conditions for Setting the DTC

Missing or wrong input signals while the top is running.

Action Taken When the DTC Sets

The top is disabled.

Conditions for Clearing the DTC

The fault is no longer present and the top completes one cycle.

Diagnostic Aids

A weak battery may cause DTC B1010 08 to set.

Reference Information

Schematic Reference

Folding Top Schematics

Connector End View Reference

Power Roof Systems Connector End Views

Description and Operation

Power Folding Top Description and Operation

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

Scan Tool Reference

Scan Tool Data List

Scan Tool Data Definitions

Scan Tool Output Controls

Circuit/System Verification

Important: If DTC B1296, DTC B1307, DTC B1325, DTC B1335, DTC B1345, DTC B1395, DTC B316A, DTC B3602, DTC B3669, DTC B366A, DTC B366B, DTC B366C, DTC B366D, DTC B366E, DTC B3674, DTC B3675, DTC B367A, DTC B367B, DTC B367F, DTC B3680, DTC B3683, or DTC B3685 are set, diagnose those DTCs first. After diagnosing any other Folding Top DTCs, clear DTCs and operate the Folding Top to see if DTC B1010 08 resets before diagnosing it.

  1. Ignition ON, observe the scan tool Folding Top Module Inputs parameters. The parameters should match the information in the Folding Top Switch Position Matrix .
  2. All the folding top switches should function as indicated in the Folding Top Switch Position Matrix .
  3. If a folding top switch does not match the Switch Position chart perform the appropriate DTC diagnostic:
    • S1 inoperative refer to DTC B1296
    • S2 inoperative refer to DTC B3669
    • S3 inoperative refer to DTC B367B and DTC B1395
    • S4 inoperative refer to DTC B367A and DTC B1395
    • S9 inoperative refer to DTC B366E
    • S10 inoperative refer to DTC B366D
    • S11 inoperative refer to DTC B366B
    • S12 inoperative refer to DTC B366A
    • S13 inoperative refer to DTC B367F
    • S14 inoperative refer to DTC B1307
    • S17 inoperative refer to DTC B3683
    • S18 inoperative refer to DTC B3685
    • S19 inoperative refer to DTC B366C

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.