DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
Section 4.3 Recommended Lubrication of Pins and Sockets Prior to Installation
Beginning in January of 1999, GE will implement the addition of a lubricant to all connections using pins and sockets on EV100/EV200 and Gen II products. Any connection made by GE to the A, B, X, Y, or Z plugs will have the lubricant NYE 760G added to prevent fretting of these connections during vehicle operation.
Fretting occurs during microscopic movement at the contact points of the connection. This movement exposes the base metal of the connector pin which, when oxygen is present, allows oxidation to occur. Sufficient build up of the oxidation can cause intermittent contact and intermittent vehicle operation. This can occur at any similar type of connection, whether at the control or in any associated vehicle wiring, and the resultant intermittent contact can provide the same fault indication as actual component failure.
The addition of the NYE 760G lubricant will prevent the oxidation process by eliminating the access of oxygen to the contact point. GE recommends the addition of this lubricant to the 12 pin and 23 pin plugs of all new Gen II controls at the time of their installation into a vehicle
When servicing existing vehicles exhibiting symptoms of intermittent
New and
Warning: Do not use any other cleaners or lubricants other than the ones specified.
WARNING: Before conducting maintenance on the vehicle, jack up the drive wheels, disconnect the battery and discharge the capacitors. Consult the Operation and Service Manual for your particular vehicle for details on discharging the capacitors; this procedure differs between SCR and Transistor controls.
1.Disconnect plug from controller or mating plug.
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2.Locate the plug that contains the socket (female) terminals. Maintenance needs only to be performed on the plug containing the socket (female) type terminals. Reconnecting the plugs will lubricate the pin (male) terminals.
3. Clean each terminal using Chemtronics contact cleaner
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Figure 1
4. Lubricate each terminal using Nye 760G lubricant as
shown in figure 2. Apply enough lubricant to each terminal opening to completely fill each opening to a depth of .125” minimum.
LUNye
B
RICA
N
TS
Figure 2
5.Reconnect plugs.
Reference |
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Cleaner | Chemtronics |
| Cleaner |
Lubricant | Nye Lubricants NYOGEL 760G |
GE Plug Lub Kit | Contains both above products: |
| 328A1777G1 |
January 2000