Recall - Sensor Wiring Heat Shield: Overview
September 1999CALIFORNIA EMISSIONS RECALL NO. 840
Oxygen Sensor Wiring Heat Shield
MODEL
1999 (WJ) Jeep Grand Cherokee
NOTE:
This recall applies to the above vehicles equipped with a 4.0L engine ("S" in the 8th VIN position) and a California emission control system (sales code NAE) built through September 5, 1998 (MDH 090511).
SUBJECT
The oxygen sensor wiring on about 585 of the above vehicles may contact the mini-catalyst and cause the sensor to become inoperative. An inoperative oxygen sensor may illuminate the "Check Engine" light and cause the vehicle to emit emissions above the allowable limits.
REPAIR
The rear mini-catalyst downstream oxygen sensor wiring must be inspected for melted insulation and a wiring heat oxygen sensor must be replaced and the oxygen sensor heater circuit fuse must be checked and replaced as required.
PARTS INFORMATION
A. Heat Shield Package
Part Number Description
CHA08400 Oxygen sensor wiring heat shield package
Each package contains one heat shield and two push-on retainers.
Each dealer, to whom vehicles in the recall were invoiced (or the current dealer at the same street address), will receive enough Heat Shield Packages to service about 25% of those vehicles.
For vehicles located in California, dealers must order the required Authorized Modifications Label, PN 4275086, as necessary to support scheduled repairs.
B. Oxygen Sensor and Fuse
If the oxygen sensor requires replacement due to melted/shorted wiring, dealers should order:
Part Number Description
56041212AF Oxygen Sensor
000ATM20 Fuse, Oxygen Sensor Heater
Very few vehicles are expected to require oxygen sensor and fuse replacement.
COMPLETION REPORTING AND REIMBURSEMENT
Claims for vehicles which have been serviced must be submitted on the DIAL System. Claims submitted will be used by DaimlerChrysler to record recall service completions and provide dealer payments.
Use one of the following labor operation numbers and time allowances:
Labor Operation Time
Number Allowance
Inspect wiring and install heat shield 08840182 0.2 hours
Inspect wiring, install heat shield, 08840183 0.3 hours
replace oxygen sensor and
inspect/replace fuse
Add the cost of the recall parts package (with oxygen sensor and fuse where required) plus applicable dealer allowance to your claim.
NOTE:
See the Warranty Administration Manual, Recall Claim Processing Section, for complete recall claim processing instructions.
PARTS RETURN
Not applicable.
DEALER NOTIFICATION AND VEHICLE LIST
All dealers will receive a copy of this dealer recall notification letter by first class mail. Two additional copies will be sent through the DCMMS, and the MDS2 will be updated to include this recall in the near future. Each dealer to whom involved vehicles were invoiced (or the current dealer at the same street address) will receive a list of their involved vehicles. The vehicle list is arranged in Vehicle Identification Number (VIN) sequence. Owners known to DaimlerChrysler are also listed. The lists are for dealer reference in arranging for service of involved vehicles.
DIAL SYSTEM FUNCTIONS 53 AND VIP
All involved vehicles will be entered to DIAL System Functions 53 and VIP at the time of recall implementation for dealer inquiry as needed.
Function 53 provides involved dealers with an updated VIN list of their incomplete vehicles. The customer name, address and phone number are listed if known. Completed vehicles are removed from Function 53 within several days of repair claim submission. To use this system, type "53" at the "ENTER FUNCTION" prompt, then type "0RD840".
OWNER NOTIFICATION AND SERVICE SCHEDULING
All involved vehicle owners known to DaimlerChrysler are being notified of the service requirement by first class mail. They are requested to schedule appointments for this service with their dealers. A copy of the owner notification letter is attached.
Enclosed with each owner notification is an Owner Notification Form. The involved vehicle and recall are identified on the form for owner or dealer reference as needed.
VEHICLE NOT AVAILABLE
If a vehicle is not available for service for a known reason, let us know by filling out the pre-addressed Owner Notification Form or describe the reason on a postcard and mail to:
DaimlerChrysler Corporation
CIMS 482-00-85
800 Chrysler Drive East
Auburn Hills, Michigan 48326-2757
ADDITIONAL INFORMATION
If you have any questions or need assistance in completing this action, please contact your Zone Service Office.