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Diagnostic Manual, Body and Accessories,
Volume 1.1

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3.1 Model 140 > Pneumatic System Equipment (PSE) > 11 Diagnosis - Function Test (Retractable Rear Head Restraints)

Diagnosis - Function Test (Retractable Rear Head Restraints)

Preparation for Test:
1. Check fuse F4-3 and fuse F4-11.
2. Battery voltage 11 - 14 V.
3. Ignition: ON.
4. Rear head restraints raised.

Test step/Test scope Test condition Nominal value Possible cause/Remedy 1)

1.0 Retract rear head restraints Activate rear head restraint release switch (S52) momentarily. Both rear head restraints retract. Rear head restraints do not retract and pump motor in PSE control module (A37) does not run.
23 PSE 1.0,
23 1.0.

Rear head restraints do not retract even though pump motor in PSE control module (A37) runs.
32 PSE 8.0,
32 1.0.

1) Observe Preparation for Test, see 22.
Note: The retraction of the rear head restraints may not be synchronized. One headrest retracting a few seconds before or after the other is normal and should not be considered a defect.