Entertainment System: Other Mazda 3 BL

5HB

Note. The center roof antenna has a built-in antenna amplifier.

Scheme 56

1. Turn the audio unit on and select the radio, then measure the voltage at center roof antenna connector terminal A. If the voltage is B+, go to the «FEEDER LINE INSPECTION»(ref-345255-S18561165742009102000000) . If the voltage is not B+, inspect the audio unit or antenna feeder.

Scheme 57

Scheme 58

1. Verify that there is no continuity between the center roof antenna terminals A and E using an ohmmeter.
2. Inspect for continuity between the center roof antenna terminals using an ohmmeter. If not as indicated in the table, replace the center roof antenna.

Scheme 59

Scheme 60

1. Verify that there is no continuity between the center roof antenna terminals A and F.
2. Inspect for continuity between the center roof antenna terminals. If not as indicated in the table, replace the center roof antenna.

Scheme 61

1. Disconnect the negative battery cable.
2. Remove the following parts: Front scuff plate (Passenger's side) (See «FRONT SCUFF PLATE REMOVAL/INSTALLATION»(ref-345251-S03552764762009102000000).) Front side trim (Passenger's side) (See «FRONT SIDE TRIM REMOVAL/INSTALLATION»(ref-345251-S39582742522009102000000).) Decoration panel (See «DECORATION PANEL REMOVAL/INSTALLATION»(ref-345251-S26486634232009102000000).) Glove compartment (See «GLOVE COMPARTMENT REMOVAL/INSTALLATION»(ref-345251-S25078258972009102000000).) PJB (See «PASSENGER JUNCTION BOX (PJB) REMOVAL/INSTALLATION»(ref-345241-S29864541242009102000000).)
3. Remove in the order indicated in the table. CALLOUTS FOR see scheme 40 1 Screw 2 Connector 3 SIRIUS satellite radio unit
4. Install in the reverse order of removal.

Scheme 62

1. Disconnect the negative battery cable.
2. Remove the following parts: Front scuff plate (Passenger's side) (See «FRONT SCUFF PLATE REMOVAL/INSTALLATION»(ref-345251-S03552764762009102000000).) Front side trim (Passenger's side) (See «FRONT SIDE TRIM REMOVAL/INSTALLATION»(ref-345251-S39582742522009102000000).) Decoration panel (See «DECORATION PANEL REMOVAL/INSTALLATION»(ref-345251-S26486634232009102000000).) Glove compartment (See «GLOVE COMPARTMENT REMOVAL/INSTALLATION»(ref-345251-S25078258972009102000000).) Car-navigation unit (See «CAR-NAVIGATION UNIT REMOVAL/INSTALLATION»(ref-345255-S26831542572009102000000).) CALLOUTS FOR see scheme 41 1 Bolt 2 SIRIUS satellite radio unit
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.