Ford 2003 Mustang Workshop Manual page 3983

Excessive pressure on the
occupant during normal
wear, the webbing cannot
be extracted, excessive
slack in webbing does not
retract
Component Test
Carry out the appropriate Functional Test(s) as determined in Inspection and Verification.
Functional Test I (Buckle and Tongue)
The safety belt buckle and tongue assembly must operate freely during the latching and unlatching
function. Fasten the safety belt by inserting the tongue (male portion) into the buckle (female portion).
1. Verify the following during the latching sequence:
Tongue insertion is not hindered by excessive effort.
A click is heard when the buckle latches the tongue.
2. Verify the system integrity by forcefully pulling on the belt webbing.
3. Unlatch the belt by fully depressing the buckle release button, and allowing the belt to release
and retract.
4. Verify the following during the unlatching process:
Push-button depression does not require excessive effort.
Tongue can be removed easily from the buckle.
5. Repeat the above steps three times.
6. If the inspection reveals an obvious concern(s) that can be readily identified, service as
required. Do not attempt to carry out any repair on the buckle and tongue assembly. If a
concern exists with either component, a new safety belt buckle and safety belt and retractor
assembly must be installed.
Functional Test II (Retractor)
The safety belt and retractor assembly must be freely operational for extraction and retraction of the
safety belt webbing between full extension and in-vehicle stowed positions.
1. Extract and retract the safety belt between the full extension and stowed positions.
2. Verify the retractor operates without excessive effort or binding.
3. Install a new safety belt buckle retractor and tongue assembly if no obvious concerns are
noticed and the complaint has been verified.
Circuitry.
Front safety Carry out the Functional
belt retractor Test. REFER to
and tongue. Component Test.
Rear safety INSTALL a new retractor
belt retractor and tongue if necessary.
and tongue.