ANTI-LOCK BRAKE SYSTEM-(JM4) COMPONENT EXCHANGE PROGRAM. Pontiac 6000 1986

For 1990-2009 cars

# ANTI-LOCK BRAKE SYSTEM-(JM4) COMPONENT EXCHANGE PROGRAM

1986 6000 STE WITH OPTION JM4

To obtain product feedback information on the 1986 6000 STE Anti-Lock Brake system, Pontiac Service has established a parts exchange program for certain system components. A complete description of the Anti-Lock Brake System and service procedures may be found in Section 5E of the 1986 6000 Service Manual.

The following Anti-Lock Brake System components will be available only through the exchange program until the end of the 1986 model year or until further notice. Refer to illustration. The components involved in the exchange program include the following:

1. Electronic Brake Control Module (EBCM). 2. Wheel Speed Sensors. 3. Hydraulic Unit. The hydraulic unit is a complete assembly and will include the booster/master cylinder unit, pump and motor assembly, hydraulic accumulator, pressure switch, valve block, reservoir and cap (with fluid level sensor) and all hoses and seals. 4. Energy Unit. The energy unit consists of the pump and motor assembly, hydraulic accumulator, pressure switch and all necessary seals and mounting hardware. 5. Pressure Switch. 6. Pushrod Assembly (hydraulic unit mounting bracket) . 7. Reservoir Cap and Fluid Level Switch.

All other Anti-Lock Brake System components will be available through normal WDDGM parts ordering procedures.

#### Anti-Lock System Diagnostic Procedure

When an Anti-Lock System condition is encountered, refer to the diagnostics and service procedures in Section 5E of the 1986 Pontiac Service Manual. These procedures should be used to determine which component in the Anti-Lock system must be replaced. If a malfunctioning component is isolated, determine if the component is listed on the exchange parts list above. If the part is serviced through WDDGM, use normal parts ordering procedures.

#### Obtaining an Exchange Component

If an exchange component or any part of an exchange component is isolated as the cause of an Anti-Lock System malfunction, contact Pontiac Technical Assistance Center in Pontiac to have a new part shipped. When calling have the following information on hand:

1. VIN 2. Vehicle mileage. 3. R.O. Number. 4. Failed part description. 5. Description of customer complaint. 6. Dealer shipping address.

The TAC engineer will then determine which component should be exchanged and will make shipping arrangements. Exchange components will be shipped fastest way at no charge, usually the same day, direct from the source.

#### Returning Exchange Parts

Upon receipt of the exchange part, dealers should identify the return part using the special tag included with the new component. A 11 information on the tag must be filled out.

Return parts should be securely packaged, using the original shipping containers if possible, and shipped by Parcel Post or United Parcel Service as required to the following address using the label included with the exchange parts: Alfred Teves Technologies, Inc. Customer Service Group 1290 Maplelawn Drive Troy, MI 48084

The replaced parts should be returned as soon as possible after removal from vehicle. All shipments should be freight prepaid.

#### Warranty Information

The following labor operations which will be included in the Pontiac Labor Time Guide first revision are to be used when servicing the antilock brake system.

PART NAME LABOR OPERATION TIME --------- --------------- ---- Control Module H2500 .5

Wheel Speed Sensor

Front Right H2410 .3 Left H2411 .3 Both H2412 .5

Rear Right H2414 .3 Left H2415 .3 Both H2417 .5

Hydraulic Unit H2498 1.0

Energy Unit H2499 .5

Pressure Switch H2494 .2

Pushrod Assembly H2485 1.2

Fluid Lever Sensor H2493 .2

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.