Backup Battery Volvo On Call Plus, Replacing

Backup Battery Volvo On Call Plus, Replacing
The illustrations in this service information are used for different model years and/or models. Some variation may occur. However, the essential information in the illustrations is always correct.

Removing the backup battery










- Remove the radio and carphone.
- Remove the keypad.
- Remove the two Torx 6 screws as illustrated.
- Open the hatch and lift out the battery.
- Press the catch using a screwdriver to disconnect the connector.

NOTE:
- Be very careful when releasing the catch. The connector and printed circuit board are fragile.
- On the old battery, mark a cross in the box on the battery decal, when the backup battery has been replaced. This prevents new and old batteries from being mixed up.

Installing the backup battery

Install:
- the connector on the printed circuit board.

NOTE: Check that the catch locks the connector.

- the hatch
- the two screws
- the keypad
- the radio and carphone.

The counter must be reset when a new backup battery has been installed. To reset the backup battery.

Cable harness Volvo on Call Plus, repair
The illustrations in this service information are used for different model years and/or models. Some variation may occur. However, the essential information in the illustrations is always correct.

Exposing the cable harness

Remove:
- the center console.
- the radio.
- the phone module (PHM). Disconnect the connector at the SRS (supplemental restraint system) control module.

Repairing cable harnesses

NOTE:
- If an airbag(s) has deployed, the cable harness must be checked.
- If an airbag(s) has deployed, the status of the reserve battery must be checked.

The following terminals are for Volvo On Call Plus:







- The connector at the SRS (supplemental restraint system) control module: Terminal B28 /yellow/white cable).
- Connector at the keypad: Terminal 17 (Yellow/white cable).







- Repair the cable harness.

NOTE: The cable between the carphone and SRS (supplemental restraint system) control modules (yellow/white) is joined in the cable harness and is routed to the central electronic module.