Roof

DTC B1011

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Diagnostic System Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Strategy Based Diagnosis) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Diagnostic Procedure Instructions) provides an overview of each diagnostic category.

DTC Descriptor
DTC B1011
- System Disabled Information Stored

Diagnostic Fault Information





Circuit/System Description

Battery positive voltage is supplied to the folding top control (FTC) module from the BAT MAIN 2 fuse. When commanded, this voltage is used by the FTC module to power the folding top pump motor through the motor control circuits. When an over current condition is detected, the FTC module disables the folding top pump motor in order to protect the internal FTC module circuitry.

Conditions for Running the DTC

The FTC module monitors for over current only when the power folding top pump motor is active.

Conditions for Setting the DTC

* High over current-The FTC module will set DTC B1011 when the measured current exceeds 90 amps for 30 milliseconds. This tests runs every 3 milliseconds.
* Medium over current-The FTC module will set DTC B1011 when the measured current exceeds 60 amps for 1 seconds. This tests runs every 3 seconds.
* Low over current-The FTC module will set DTC B1011 when the measured current exceeds 40 amps for 30 seconds. This tests runs every 100 milliseconds.

Action Taken When the DTC Sets

* All folding top functions in progress are aborted, including calibrations of the folding top.
* The FTC module will suspend operation of the folding top pump motor.

Conditions for Clearing the DTC

* This DTC will clear on the current status after the condition for setting the fault is corrected.
* A history DTC will clear after 50 consecutive ignition cycles without a fault present.

Reference Information
Schematic Reference

Folding Top Schematics ()
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

Power Folding Top Description and Operation ()
Electrical Information Reference

* Circuit Testing (Circuit Testing)
* Connector Repairs (Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (Testing For Intermittent Conditions and Poor Connections)
* Wiring Repairs (Wiring Repairs)

Scan Tool Reference

Control Module References (Programming and Relearning) for Scan Tool Information

Circuit/System Testing

1. Ignition OFF, disconnect the X431 inline harness connector.
2. Connect a test lamp between the control circuit terminal A4 and the control circuit terminal B4.
3. Ignition ON, command the Pump Motor A Direction and Pump Motor B Direction On and OFF with a scan tool. The test lamp should turn ON when commanding the Pump Motor A Direction and Pump Motor B Direction states.

• If the test lamp remains OFF during either of the commands, test for a short to ground on either control circuit. If the circuits test normal, replace the FTC module.

4. If all circuits test normal, replace the folding top pump motor assembly.

Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.

* Folding Top Pump with Motor Replacement ()
* Control Module References (Programming and Relearning) for FTC module replacement, setup, and programming