Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota Camry. However, it is still accessible from the selected car via links, so may be relevant.

CHECK HARNESS AND CONNECTOR
1. Disconnect the connectors shown in the illustration on the left from the stereo component amplifier and speakers.
  
  Fig 1: Identifying Stereo Component Amplifier And Speakers Connector Terminals
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance between each of the front No. 2 speakers and the stereo component amplifier to check for an open circuit in the wire harness.
  Standard resistance: Below 1 Ω
3. Measure the resistance between each of the rear speakers and the stereo component amplifier to check for an open circuit in the wire harness.
  Standard resistance: Below 1 Ω
4. Measure the resistance between each of the front No. 1 speakers and the stereo component amplifier to check for an open circuit in the wire harness.
  Standard resistance: Below 1 Ω
5. Measure the resistance between each speaker and body ground to check for a short circuit in the wire harness.
Standard resistance: 10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to Next Step
INSPECT FRONT NO. 1 SPEAKER
1. Resistance check.
  1. Measure the resistance between the terminals of the speaker.
    Standard resistance: 1.8 to 2.6 Ω
  NG: REPLACE FRONT NO. 1 SPEAKER
  
  OK: Go to Next Step
INSPECT FRONT NO. 2 SPEAKER
1. Check that the malfunction disappears when another speaker in good condition is installed.
  OK: Malfunction disappears.
HINT:
- Connect all the connectors to the front No. 2 speakers.
- 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.
OK: REPLACE FRONT NO. 2 SPEAKER

NG: Go to Next Step

INSPECT REAR SPEAKER

Woofer speaker:

Measure the resistance according to the value(s) in the table below.

Fig 2: Identifying Rear Speaker Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NOTE: The speaker should not be removed for checking.

Standard resistance

REAR SPEAKER

Tester connection	Condition	Specified condition
2 - 4	Always	1.8 to 2.6 Ω

Tweeter speaker:
1. Check that the malfunction disappears when another rear speaker in good condition is installed.
OK: Malfunction appears.

HINT:
- Connect all the connectors to the rear speaker.
- When there is a possibility that either the right or left rear speaker is detective, inspect by interchanging the right one with the left one.
NG: REPLACE REAR SPEAKER

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE