Standby Power Supply: Service and Repair

Special Tools (Vehicles Up To 9/87):

Type 1:

NOTE: Type 2 is distinguished by:
- Modified arrangement of red, 10-pin plug from footrest to panel situated below footrest.
- Modified arrangement of buffer battery/reserve power source from footrest to panel situated below footrest.

Removal:
1. Turn ignition key to position 0, disconnect and insulate negative battery terminal.
2. Remove floormat from front passenger's footwell.





3. Remove footrest from bulkhead (arrrowed).





4. Disconnect red 10-pin control unit plug under footrest.





5. Disconnect plug-connector from buffer battery/reserve power source.





6. Unscrew and remove buffer battery/reserve power source.

Installation:
7. Install buffer battery/reserve power source under footrest, tightening screws securely.
8. Connect buffer battery/reserve power source with plug-connector (arrowed).
9. Check system with tester, [1][2]Component Tests and General Diagnostics
10. Continue installation in reverse order of removal.
11. Check system with RS/SRS control lamp (A1e15).

Type 2

Removal:





1. Turn ignition key to position 0, disconnect and insulate negative battery terminal.
2. Remove floormat from front passenger's footwell.
3. Remove screw at top of footrest. Raise footrest and remove.
4. Disconnect red 10-pin plug (X29-9) on panel





5. Remove right-side door sill.
6. Press off edge trim to the right, remove side cladding from front passenger's footwell.
7. Unscrew and remove the two lower panel clips (arrowed).
8. Unscrew and remove buffer battery/reserve power source.
9. Disconnect plug-connector from buffer battery/reserve power source terminals.

Installation:
10. Connect plug-connector to buffer battery/reserve power source terminals.
11. Install buffer battery/reserve power source securely.
12. Check system with tester, [1][2]Component Tests and General Diagnostics.
13. Continue installation in reverse order of removal.
14. Check system with RS/SRS control lamp (A1e15).