Instrument Cluster - Odometer Memory Chip Service

84chrysler11

Models


All Domestic Passenger Cars Equipped With Electronic Instrument Cluster


Subject


Instrument Cluster/ Odometer Memory Chip Service


Index


ELECTRICAL

Date


March 19, 1984

No.


08-01-84

Electronic instrument clusters contain an odometer memory chip to record the vehicle mileage. Since the chip is relatively small and delicate, certain care must be exercised in handling the device during cluster or chip service. Refer to the procedure below for proper memory chip removal and installation procedures.

DIAGNOSIS

Prior to servicing the instrument cluster, utilize the "Self-Diagnostic Test" procedure provided in the service manual to determine whether the cluster or the memory chip is faulty.

^ A code of 1, 2 or 3 during the first test and the word "Fail" displayed in the odometer area, indicates the cluster is defective. Replace the cluster, retaining the memory chip for installation in the replacement cluster so as to maintain the vehicle mileage. This electronic memory device contains the current accumulated vehicle mileage. Follow the procedure below to transfer the memory chip.

^ A code of "4" and the word "Fail" displayed in the odometer area indicates a probable odometer memory chip failure. Order a replacement chip package and install per the following instructions.

NOTE: REPLACEMENT OF THE ODOMETER CHIP IS PERMISSIBLE ONLY WHERE ORIGINAL MILEAGE MAY BE POSTED ON A DOOR JAMB LABEL. IN AREAS WHERE LAWS REQUIRE ORIGINAL MILEAGE TO BE DISPLAYED IN ODOMETER, CONTACT HUNTSVILLE ON 1-800-328-6121.
PARTS REQUIRED

Odometer NVM Chip Package PN 4342218

Consists of:

1 - NVM Chip with Asterisk (*Indicates not original mileage) 1 - Instruction Sheet 1 - Speedometer Door Jamb Label

REPAIR PROCEDURE

1. Remove instrument cluster per service manual procedures.

2. If service replacement chip will be used, record original mileage on speedometer door jamb label and attach to door jamb (if dashes, record last known mileage).

3. Select a clean work area.

4. Wash hands to insure that grease and dirt will not be left on the odometer chip contact pins.

5. Place the cluster front side down on a soft clean cloth.

6. Insure that the cluster is with the bottom toward the person intending to remove and install the odometer chip.

7. Open the odometer chip access door by pressing the latch ears toward the center of the door.

FIGURE 1:

8. Notice that the odometer chip located just inside the access door has a distinctive notch. Be sure to install the chip in the same direction it was in the original cluster. When installed properly, the odometer chip notch should be on the left (Figure 1).

FIGURE 2:

FIGURE 3:

9. Using Miller Special Tool #C-4817 (Figure 2), grasp the chip between the tool jaws under the ends of the odometer chip. Carefully rock the chip along its longitudinal axis as you pull gently. The odometer chip should extract easily (Figure 3).

NOTE: IF THE ODOMETER CHIP WILL NOT BE IMMEDIATELY INSTALLED IN THE NEW CLUSTER, PROTECT THE ODOMETER CHIP FROM DAMAGE BY PLACING IT IN AN ENVELOPE WITH THE VEHICLE VIN NUMBER AND MILEAGE.

FIGURE 4:

10. Before inserting replacement odometer chip into cluster (or transferring existing odometer chip to new cluster), inspect pins of chip to assure they are straight and perpendicular to chip body. If not, align pins before attempting to install in cluster (Figure 4).

11. The odometer chip should now be placed lightly in the socket with the notch to the left. Note that each of the 14 contact pins is in contact with the lip of the socket pin. If all 14 pins are not started in the socket, gently reform the pins to match the socket holes. Press the odometer chip into position with Miller Special Tool #C-4817.
12. Verify that the odometer chip notch is toward the left when the cluster is face down, and bottom of cluster is toward installer.

13. Replace access door and install cluster in vehicle per service manual procedures.

14. If odometer chip was transferred to new cluster or original mileage odometer chip was obtained, verify that the mileage is the same as was recorded.


This bulletin is released in advance of parts availability. The parts listed in this bulletin will be available in mid-March, 1984.


POLICY: Reimbursable within the provisions of the warranty


TIME ALLOWANCE:
Labor Operation No. 08-70-02-01 Memory Chip With Zero Mileage 0.4 Hrs.
08-70-02-02 Memory Chip With Original Mileage 0.4 Hrs.


FAILURE CODE: 58 - Internal Defect