Rear Defroster Does Not Operate (T015/96)

Publication date: 1996-07-24
Reference number: T015/96

REAR DEFROSTER DOES NOT OPERATE

TECHNICAL SERVICE BULLETIN

Reference Number(s): CAT. T, NO. 015/96, Date of Issue: July 24, 1996

REAR DEFROSTER DOES NO OPERATE

Model(s): 1994-96 Mazda MX-6

Category: T - Body Electrical System

Bulletin No.: 015/96

Date: July 24, 1996

APPLIED MODELS/VINS

1994 - 96 MX-3 with a VIN of JM1EC43XT0502358 and lower.

NOTE: 1996 MX-3 is applicable to markets other than the U.S.

DESCRIPTION

The rear defroster may not operate and the relay and/or connector may be damaged. The damage is caused by vibration at the connector and relay while driving. The vibration increases contact resistance and generates heat in the connector. In some cases, rear defroster relay replacement alone may not prevent the concern from recurring. The rear defroster relay location has changed to reduce vibration. See Fig 1 . Customers complaining of this concern should have the vehicle inspected and if necessary repaired according to this bulletin.

Fig 1: Old Location/New Location

REPAIR PROCEDURE

Check relay "A" and connector for damage.
- If no damage is found, See section I of the BETM. Repair as necessary and proceed to step 2.
- If the relay and/or connector is damaged, replace the relay with a new part and, if necessary, repair the connector.
Disconnect connector "C" from relay "C".
Connect connector "C" to newly installed relay "A".
Connect connector "A" to relay "C".

NOTE: Connector "A" must be connected to relay "C". These relays share functional characteristics. Switching the "A" and "C" connectors will not affect the function of the related system.

PARTS INFORMATION

Part Number	Description
H270-67-740	Relay

Fig 2: Relays & Connectors

Fig 3: Switch Connectors "A" & "C"