Service Procedure
SERVICE PROCEDURE
Steps 1 and 2
3. Write down the radio station presets.
4. Turn the ignition OFF.
5. Disconnect both battery cables - negative cable first.
6. Wait at least 3 minutes.
IMPORTANT:
Make sure the Verister Test Tool is tested at least once each day before use (Refer to the beginning of this bulletin).
7. Connect the power cord to the Varistor Test Tool.
^ The AC to 18 volt DC power cable has several plug styles to accommodate different global markets.
^ Select and attach the AC plug style for the U.S. market.
8. Look under the passenger seat; locate and disconnect the OCS connector and connect the MAT cable.
^ The OCS connector is an 8 pin white connector (only 3 of the pins are used/filled).
NOTE for Altima Coupe: The OCS connector is located at the rear of the seat cushion.
^ Adjust the seat all the way forward; unhook the seat back flap and the rear seat cushion flap.
9. Turn ON the Varistor Test Tool.
10. Make sure the LEDs turn ON as shown above.
11. Push the Start button on the Varistor Test Tool.
12. After pressing the Start button, make sure the LEDs turn ON as shown above.
NOTE:
"OK" LED should be OFF.
13. Wait for OCS inspection to complete - about 10 minutes.
NOTE:
Expected results - Less than 1% will test NG. More than 99% will test OK.
Actual inspection results as shown above.
NG results:
NG results are expected to be very low (less than 1% of vehicles tested).
If you get a NG result, do the following:
a. Remove / disconnect both ends of the MAT cable that you are using.
b. Get another serviceable new MAT cable and connect it to the Varistor Test Tool and the vehicle seat.
^ Make sure to mark the usage card for each MAT cable connection.
c. Repeat the OCS inspection test (steps 9 though 13).
d. After repeating the test with a second MAT cable (NG result 2 times), replace the OCS / seat cushion.
^ See OCS / seat cushion replacement on the next page.
NOTE:
^ If the second test is a NG result (same as the first), the original cable can continue to be used for the remainder of its "usage card" life.
^ If the second test is an OK result (different than the first) the original cable should be discarded.
OCS / Seat Cushion Replacement
Only for N/G test results in step 13, or DTC B1022 is stored
^ If not already done:
^ Record radio station presets.
^ Turn the ignition OFF, disconnect both battery cables - negative cable first.
^ Wait at least 3 minutes.
^ Be careful: Do not scratch or otherwise damage interior parts.
^ Refer to the SE section of the appropriate Service Manual for Seat Cushion replacement information.
NOTE:
The Service Manual may caution against disassembly of the passenger seat cushion from the seat frame. It may also instruct that the cushion and frame be replaced as an assembly. Due to changes in parts manufacturing and availability, the seat cushion can now be replaced separately from the seat frame on Model and Year vehicles affected by this campaign.
> Make sure each seat cushion hook and strap is properly connected/attached in its original location.
> Torque mounting bolts according to the appropriate Service Manual.
> WARNING: Make sure all mounting and support clips for electrical connectors and harness are reinstalled in their original locations.
> Retain the old seat cushion for 30 days for possible inspection by Nissan.
14. Reconnect the OCS vehicle harness connector.
15. Connect the battery cables - positive cable first.
16. Check the Air Bag warning light and the Occupant Detection System warning light as follows:
a. Sit in the driver seat and watch the warning lights as you turn the ignition ON.
b. Both warning lights should turn ON for 5 - 7 seconds, and then go OFF.
c. If either warning light does not turn ON at all, does not turn OFF, or blinks, refer to the Service Manual for diagnosis and repair.
NOTE:
Diagnosis and repair beyond replacement of the OCS (passenger seat cushion) is not covered by this bulletin/campaign.
17. Reset the clock and the radio station presets.
18. Refer to the appropriate Service Manual and perform the following as needed:
^ Power Window Initialization
^ Power Sunroof Initialization
^ Accelerator Pedal Released Position Learning
^ Throttle Valve Closed Position Learning
^ Idle Air Volume Learning
^ Steering Angle Sensor Neutral Position
^ Rear View Monitor Guiding Line Adjustment
^ Rear View Monitor Predicted Course Line Center Position Adjustment
NOTE:
You may need to inform the customer that their Automatic Drive Position System will need to be reset.