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Workhorse
ECM/PCM Removal & Replacement |
Remove
and Install ECM/PCM |
Tools:
•
7mm socket/wrench
• 10mm socket/wrench |
Procedure:
1.
Disconnect the Negative battery cable.
2. Remove the dog house.
3. With
10mm wrench/socket remove the 3 bolts that hold the TCM to brackets. Now swing
the TCM out of the way. |
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4.
With the same 10mm socket loosen the passengers side TCM bracket bolts and remove
the drivers side ones. This will allow you to move the brackets out of the way
later.
5. Now take a 7mm socket and loosen the bolt that holds the wiring harness
plug into the ECM. |
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NOTES:
•
The bolt that holds the wiring harness plug does not come all the way out. It
stays
with the plug.
• There are rubber seals in
the plugs that probably will stick to the ECM. Just
remove them and tuck them
back in the plugs.
6. On most motor homes this step can be done from the under
the hood, so to speak. Push the ECM retaining clip all the way to the right (driver
side). Now release the 2 ECM hold down clips and lift the ECM out. |
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| 7.
Replace the ECM and reverse the procedure. |
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