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DTC C0552

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

DTC Descriptor

DTC C0552 00: Improper Shutdown Malfunction

Circuit/System Description

The electronic brake control module monitors the number of Vehicle in Service Mode and Vehicle OFF cycles. When it detects that a Vehicle OFF cycle was incomplete or nonexistent this fault will set. This means the fault reports a problem that occurred at the end of the previous ignition cycle. If this occurs during an electronic brake control module service operation, any calibrations or offsets learned during that service operation may not be properly stored in memory.

Conditions for Running the DTC
    • Vehicle ON or Vehicle in Service Mode.
    • The ignition voltage is greater than 10 V.
    • The electronic brake control module is initialising.

Conditions for Setting the DTC

A Vehicle OFF cycle was interrupted before completion. Or power was removed from the module; with the Vehicle ON, the vehicle moving, and the brake applied.

Action Taken When the DTC Sets
    • The electronic brake control module disables the antilock brake system, traction control and the vehicle stability enhancement system for the duration of the drive cycle.
    • A driver information centre message and/or a warning indicator may be displayed.

Conditions for Clearing the DTC
    • The condition for the DTC is no longer present.
    • The electronic brake control module clears the history DTC when a current DTC is not detected in 40 consecutive drive cycles.

Diagnostic Aids

This DTC can set if battery voltage drops below 8 V with the Vehicle ON or Vehicle in Service Mode.

Reference Information

Schematic Reference

Antilock Brake System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

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

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Testing
  1. Vehicle OFF and all vehicle systems OFF, disconnect the harness connector at the K17 Electronic Brake Control Module. It may take up to 2 min for all vehicle systems to power down.
  2. Test for less than 10 Ω between the ground circuit terminals listed below and ground:
    3. • Terminal 13
    • Terminal 38
    ⇒If 10 Ω or greater
    2.1. Vehicle OFF.
    2.2. Test for less than 2 Ω in the ground circuit end to end.
    ⇒     If 2 Ω or greater, repair the open/high resistance in the circuit.
    ⇒     If less than 2 Ω, repair the open/high resistance in the ground connection.
    ⇓   If less than 10 Ω
  3. Vehicle in Service Mode.
  4. Verify that a test lamp illuminates between the B+ circuit terminal 1 and ground.
    5. ⇒If the test lamp does not illuminate and the circuit fuse is good
    4.1. Vehicle OFF.
    4.2. Test for less than 2 Ω in the B+ circuit end to end.
    ⇒     If 2 Ω or greater, repair the open/high resistance or the short to ground in the circuit.
    ⇒     If less than 2 Ω, verify the fuse is not open and there is voltage at the fuse.
    ⇓     If the test lamp illuminates
  5. Cycle the Vehicle OFF then to Vehicle in Service Mode.
  6. Verify DTC C0552 or C121D is not set.
    7. ⇒If the DTC sets
        Replace the K17 Electronic Brake Control Module.
    ⇓   If the DTC does not set
  7. All OK.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

Control Module References for electronic brake control module replacement, programming and setup

   


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