Remove the auto-tensioner.
Remove the tensioner pulley.

Install the tensioner pulley in the reverse order of removal.
Install the auto-tensioner.
SRS Component Replacement/Inspection After Deployment
NOTE:
Before doing any SRS repairs,
check for DTCs, for the less obvious deployed
components (seat belt tensioners, front impact sensors, side impact sensors,
etc).
If there is ...
Checking the Battery
Check the condition of the battery monthly by looking at the test indicator window.
The label on the battery explains the test indicator’s colors. The test indicator
window’s location differ ...
Horn Test/Replacement
'09-11 models
Remove the front grille cover.
Disconnect the 1P connector (A) from the horn (B).
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"Honda_SymbolMark ...