Auxiliary input sound is low or cannot be heard (without navigation)

WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Check the vehicle battery condition first (see 12 VOLT BATTERY TEST ).
Use auxiliary stereo cables with 3.5 mm ends only.
Auxiliary accessories may be played on the audio unit using the auxiliary input.

Turn the ignition switch to ON (II).
Turn on the audio unit and connect an auxiliary accessory to the auxiliary input jack.
Check the volume operation.
Is the sound normal?

YES -Operation is normal at the time.

NO -go to step 4.
Make sure the auxiliary accessory volume is set to MAX.
Is the volume set to MAX?

YES -go to step 5.

NO -Raise the auxiliary accessory volume to MAX. Make sure the audio unit volume is turned down before retesting.
Substitute a known-good auxiliary audio accessory and/or auxiliary stereo cable, and recheck.
Does the auxiliary audio accessory operate properly?

YES -Original auxiliary audio accessory or auxiliary stereo cable is faulty.

NO -
- Except DX model: Substitute a known-good center panel (see AUDIO UNIT REMOVAL/INSTALLATION ), and recheck. If the symptom/indication goes away, replace the original center panel. If the symptom/indication is still present, replace the audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ).
- DX model: Go to step 6.
Turn the ignition switch to LOCK (0).
Remove the auxiliary jack assembly (see AUXILIARY JACK ASSEMBLY REPLACEMENT ), and check that the auxiliary jack assembly is properly connected.
Is the auxiliary jack assembly connected properly?

YES -Go to step 8.

NO -Reconnect the connector, and recheck.
Disconnect the auxiliary jack assembly 5P connector.
Remove the audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ), and disconnect audio unit connector B (20P).

Check for continuity between body ground and audio unit connector B (20P) according to the table.

AUDIO UNIT CONNECTOR CHART

Audio unit connector	Wire color
B3	BRN
B5	WHT
B13	YEL
B14	ORN
B15	PUR

Fig 1: Audio Unit Connector B (20P)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -There is a short to body ground in the wire(s) between the audio unit and the auxiliary jack assembly. Replace the affected shielded harness or repair a short in the wire(s).

NO -Go to step 11.

Check for continuity between the terminals of audio unit connector B (20P) according to the table.

TERMINAL TEST CHART

From terminal	To terminals
B3 (BRN)	B4 (GRY), B5 (WHT), B13 (YEL), B14 (ORN), B15 (PUR)
B4 (GRY)	B5 (WHT), B13 (YEL), B14 (ORN), B15 (PUR)
B5 (WHT)	B13 (YEL), B14 (ORN), B15 (PUR)
B13 (YEL)	B14 (ORN), B15 (PUR)
B14 (ORN)	B15 (PUR)

Fig 2: Audio Unit Connector B (20P)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -There is a short in the wires between the audio unit and the auxiliary jack assembly. Replace the affected shielded harness or repair a short in the wires.

NO -Go to step 12.

Check for continuity between audio unit connector B (20P) and the auxiliary jack assembly 5P connector according to the table.

CONTINUITY TEST TABLE

Audio unit connector	Auxiliary jack assembly connector	Wire color
B3	No. 3	BRN
B5	No. 2	WHT
B13	No. 4	YEL
B14	No. 5	ORN
B15	No. 1	PUR

Fig 3: Audio Unit Connector B (20P)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 4: Auxiliary Jack Assembly 5P Connector

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Substitute a known-good auxiliary jack assembly (see AUXILIARY JACK ASSEMBLY REPLACEMENT ), and recheck. If the symptom/indication goes away, replace the original auxiliary jack assembly. If the symptom/indication is still present, replace the audio unit (see AUDIO UNIT REMOVAL/INSTALLATION ).

NO -There is an open in the wire(s) between the audio unit and the auxiliary jack assembly. Replace the affected shielded harness or repair an open in the wire(s).