Policy - HHT Warranty & Precautions
REF.NO.: MBNA 58/68DATE: October 1993
TO: OUR MERCEDES-BENZ PASSENGER CAR DEALERS
SUBJECT:
HAND-HELD TESTER (HHT) REPAIRS
1. WARRANTY/REPAIR INFORMATION
2. CAUTION NOTES
3. HHT INTERNAL BATTERY INFORMATION
Included this Service Information is one sample copy of the HHT Failure Defect Report. This form must be completed when any HHT hardware component is returned for warranty or repair consideration.
Note:
This form is not orderable, please make additional copies as necessary.
ALL QUESTIONS or PROBLEMS concerning the HHT should be directed to your REGIONAL TECHNICAL COORDINATOR! This includes queries on actual values, modules, literature, loaners, etc.
1. WARRANTY/REPAIR INFORMATION (Tool Warranty)
The warranty period on all HHT items is for one (1) full year from date-of-purchase.
Non-warranty repairs (accidental damage, misuse, etc.) will be repaired and charged accordingly.
Prior to returning any component of the HHT set, the complaint must be verified with your Regional Technical Coordinator.
Depending upon availability, a MBNA loaner unit can be provided to your dealership at the request of your Regional Technical Coordinator only.
Note:
Any returned components must reference the serial number of the HHT. For example, if a defective adapter cable is returned, it must include the serial number of the HHT it was sold with.
The defective/malfunctioning HHT hardware component, including a completed HHT Failure/Defect Report, should be returned to:
Mercedes-Benz of North America, Inc
Test and Service Center
One Glenview Road
Montvale NJ 07645
Attn: HHT Tool Repair
The HHT can not be returned with other warranty return items, it must be securely packaged and returned separately, prepaid and insured.
2. CAUTION NOTES
CAUTION!
If the following cautions are not observed, extensive damage can occur to the HHT.
^ DO NOT connect the HHT with the vehicle ignition ON!
^ ALWAYS connect the multiplexer cable to the HHT first and then to the data link connector!
3. HHT INTERNAL BATTERY INFORMATION
The internal battery of the HHT (located in the handle) is used to maintain the internal clock and calender. The internal battery does not provide power to the HHT. Operating power is supplied directly from the vehicle while the HHT is connected.
Refer to HHT Operating Instructions for correct battery type to be used. Never use normal alkaline batteries.
Note:
^ the HHT will continue to function even if the battery is not installed,
^ If the internal battery is installed, but is not at full operating voltage, an error message for the battery test mode may appear. Low internal battery voltage can occur if the HHT is not used for several weeks. To recharge the internal battery, connect the HHT to a vehicle with the multiplexer cable (can not be connected to a vehicle with a HFM-SFI engine) with the ignition OFF. Leave the HHT connected for at least half an hour.
In future dealer orders of the HHT, the internal battery will be co-packed separately from the HHT and will require installation by the dealer.
Follow the numerically numbered steps as depicted in the diagram to open the battery compartment and properly install the battery.