Inspection Procedure
- CHECK HARNESS AND CONNECTOR
- Disconnect the connectors shown in the illustration from the navigation receiver assembly and speakers.
- Measure the resistance between each of the front No. 2 speakers and the navigation receiver assembly to check for an open circuit in the wire harness.
Standard Resistance
STANDARD RESISTANCE REFERENCE CHARTTester Connection Condition Specified Condition E1-2 (FL+) - I4-4 (+) Always Below 1 Ω E1-6 (FL-) - I4-2 (-) Always Below 1 Ω E1-1 (FR+) - H4-4 (+) Always Below 1 Ω E1-5 (FR-) - H4-2 (-) Always Below 1 Ω - Measure the resistance between each of the front No. 2 speakers and each of the front No. 1 speakers to check for an open circuit in the wire harness.
Standard Resistance
STANDARD RESISTANCE REFERENCE CHARTTester Connection Condition Specified Condition I1-1 - I4-3 (TWL+) Always Below 1 Ω I1-2 - I4-1 (TWL-) Always Below 1 Ω H1-1 - H4-3 (TWR+) Always Below 1 Ω H1-2 - H4-1 (TWR-) Always Below 1 Ω - Measure the resistance between each of the rear speakers and the navigation receiver assembly to check for an open circuit in the wire harness.
Standard Resistance
STANDARD RESISTANCE REFERENCE CHARTTester Connection Condition Specified Condition E2-2 (RL+) - K2-1 Always Below 1 Ω E2-6 (RL-) - K2-2 Always Below 1 Ω E2-1 (RR+) - J2-1 Always Below 1 Ω E2-3 (RR-) - J2-2 Always Below 1 Ω - Measure the resistance between each speaker and body ground to check for a short circuit in the wire harness.
Standard Resistance
STANDARD RESISTANCE REFERENCE CHARTTester Connection Condition Specified Condition E1-2 (FL+) - Body ground Always 10 kΩ or higher E1-6 (FL-) - Body ground Always 10 kΩ or higher E1-1 (FR+) - Body ground Always 10 kΩ or higher E1-5 (FR-) - Body ground Always 10 kΩ or higher E2-2 (RL+) - Body ground Always 10 kΩ or higher E2-6 (RL-) - Body ground Always 10 kΩ or higher E2-1 (RR+) - Body ground Always 10 kΩ or higher E2-3 (RR-) - Body ground Always 10 kΩ or higher I4-3 (TWL+) - Body ground Always 10 kΩ or higher I4-1 (TWL-) - Body ground Always 10 kΩ or higher H4-3 (TWR+) - Body ground Always 10 kΩ or higher H4-1 (TWR-) - Body ground Always 10 kΩ or higher NG: REPAIR OR REPLACE HARNESS OR CONNECTOR
OK: Go to Next Step
- INSPECT FRONT NO. 1 SPEAKER
- Resistance check
- Measure the resistance between the terminals of the speaker.
Standard Resistance
STANDARD RESISTANCE REFERENCE CHARTTester Connection Condition Specified Condition I1-1 - I1-2 Always 3.2 to 4.8 Ω H1-1 - H1-2 Always 3.2 to 4.8 Ω NG: REPLACE FRONT NO. 1 SPEAKER (See REMOVAL )
OK: Go to Next Step
- Measure the resistance between the terminals of the speaker.
- Resistance check
- INSPECT FRONT NO. 2 SPEAKER
- Check that the malfunction disappears when another speaker in good condition is installed.
Standard: Malfunction disappears .
HINT:
- Connect all the connectors to the front No. 2 speaker.
- When there is a possibility that either the right or left front speaker is defective, inspect by interchanging the right one with the left one.
- Perform the above inspection on both LH and RH sides.
NG: REPLACE FRONT NO. 2 SPEAKER (See REMOVAL )
OK: Go to Next Step
- Check that the malfunction disappears when another speaker in good condition is installed.
- INSPECT REAR SPEAKER
- Resistance check
- Measure the resistance between the terminals of the speaker.
Standard Resistance
STANDARD RESISTANCE REFERENCE CHARTTester Connection Condition Specified Condition K2-1 - K2-2 Always 3.2 to 4.8 Ω J2-1 - J2-2 Always 3.2 to 4.8 Ω NG: REPLACE REAR SPEAKER (See REMOVAL )
OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )
- Measure the resistance between the terminals of the speaker.
- Resistance check