GM Service Manual Online
For 1990-2009 cars only

Circuit Description

This procedure checks whether the brake system has been filled and bled properly.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC C1395 Fill and Bleed Not Complete

Conditions for Running the DTC

    • Vehicle speed is greater than 6 km/h (4 mph) with the brake pedal not applied.
        OR
    • Vehicle speed is greater than 15 km/h (9 mph) and the brake pedal is actuated.

Conditions for Setting the DTC

    • Improper battery voltage
    • Brake system not properly bled

Action Taken When the DTC Sets

The following actions occur:

    • The antilock brake system (ABS) is disabled.
    • The ABS warning indicator turns ON.
    • The electronic brake force distribution (EBD) is disabled.

Conditions for Clearing the DTC

The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.

Diagnostic Aids

It is very important to perform a thorough inspection of the wiring and the connectors. Failure to inspect the wiring and the connectors carefully and completely may result in misdiagnosis, causing part replacement with the reappearance of the malfunction.

Test Description

The number below refers to the step number on the diagnostic table.

  1. This step checks for the proper battery voltage.

Step

Action

Values

Yes

No

Schematic Reference: Antilock Brake System Schematics

Connector End View Reference: Component Connector End Views

1

Did you perform the Diagnostic System Check - Vehicle?

--

Go to Step 2

Go to Diagnostic System Check - Vehicle

2

Measure the battery voltage.

Is the battery voltage as specified?

11-14 V

Go to Step 3

Go to Step 4

3

Bleed the brake system.

Did you complete the repair?

--

Go to Step 5

--

4

  1. Inspect all wiring harness connectors and terminals, especially those at the electronic brake control module (EBCM), for any condition that could cause an intermittent.
  2. Repair any problems found.

Did you find and correct the condition?

--

Go to Step 5

Go to Step 3

5

  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.

Does the DTC reset?

--

Go to Step 2

System OK