4-way relay carrier in electronics box in plenum chamber, removing and installing

Removing

CAUTION:

Fig 1: Identifying Plenum Chamber Cover & Removing Rubber Seal

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Fig 2: Removing Securing Clips And Cowl

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Fig 3: Removing Screws And Cover From E-Box In Plenum Chamber

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Fig 4: Using Screwdriver To Remove Retainer Bar And Engine Control Module (ECM) J623

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Use screwdriver to pry off retaining strap - arrows -.
Lay aside engine control module with wires attached.
Where applicable, release the retaining clip for the transmission control module.
Lay aside transmission control module with wires attached.

Fig 5: Releasing Retaining Clips And Lifting Auxiliary Relay Carrier Out Of Electronics Box

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Release retaining clips - arrows - and lift auxiliary relay carrier out of electronics box.
Unclip the fuse carriers at the 4-position relay carrier.
Remove relays and control modules and then unclip appropriate relay carrier.

Fig 6: Removing Motronic Engine Control Module (ECM) Power Supply Relay J271 From E-Box

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NOTE:

Refer to the applicable wiring diagram for exact identification of connections on electronics box Wiring Diagrams.

Installing

Install in reverse order of removal.