Audio / Video System (W/ Navigation) (Diagnostic Codes & Circuit Tests): Overview Lexus RX III

DESCRIPTION

This DTC is stored when a malfunction occurs in a connected device.

This DTC is stored when a malfunction occurs in a connected device.

These DTCs are stored when a malfunction occurs in the radio receiver assembly.

These DTCs are stored when a malfunction occurs in the radio receiver assembly.

This DTC is stored when a malfunction occurs in the stereo component amplifier assembly.

This DTC is stored when a malfunction occurs in the stereo component amplifier assembly.

This DTC is stored when a malfunction occurs in the radio receiver assembly.

This DTC is stored when a malfunction occurs in the radio receiver assembly.

This DTC is stored when a malfunction occurs in the multi-media interface ECU.

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This DTC is stored when a malfunction occurs in the multi-media interface ECU.

This DTC is stored when a malfunction occurs in the speakers.

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1. CHECK HARNESS AND CONNECTOR Disconnect the connectors shown in the illustration from the stereo component amplifier assembly and speakers. TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Stereo Component Amplifier Assembly) *2 Front view of wire harness connector (to Stereo Component Amplifier Assembly) *3 Front view of wire harness connector (to Front No. 2 Speaker) *4 Front view of wire harness connector (to Front No. 3 Speaker, Front No. 4 Speaker) *5 Front view of wire harness connector (to Front No. 1 Speaker, Rear No. 1 Speaker) *6 Front view of wire harness connector (to Rear No. 2 Speaker) *7 Front view of wire harness connector (to Rear No. 3 Speaker) Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-3 (WFL+) - Body ground Always 10 kohms or higher O16-8 (WFL-) - Body ground Always 10 kohms or higher O16-10 (WFR+) - Body ground Always 10 kohms or higher O16-9 (WFR-) - Body ground Always 10 kohms or higher O16-4 (RL+) - Body ground Always 10 kohms or higher O16-11 (RL-) - Body ground Always 10 kohms or higher O16-5 (RR+) - Body ground Always 10 kohms or higher O16-12 (RR-) - Body ground Always 10 kohms or higher O17-1 (WF1+) - Body ground Always 10 kohms or higher O17-5 (WF1-) - Body ground Always 10 kohms or higher O17-2 (WF2+) - Body ground Always 10 kohms or higher O17-6 (WF2-) - Body ground Always 10 kohms or higher O17-4 (FR+) - Body ground Always 10 kohms or higher O17-10 (FR-) - Body ground Always 10 kohms or higher O17-3 (FL+) - Body ground Always 10 kohms or higher O17-9 (FL-) - Body ground Always 10 kohms or higher O17-8 (CTR+) - Body ground Always 10 kohms or higher O17-7 (CTR-) - Body ground Always 10 kohms or higher Measure the resistance between each of the front No. 2 speakers and body ground to check for a short circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition I5-3 (+) - Body ground Always 10 kohms or higher I5-4 (-) - Body ground Always 10 kohms or higher J4-3 (+) - Body ground Always 10 kohms or higher J4-4 (-) - Body ground Always 10 kohms or higher Measure the resistance between each of the rear No. 2 speakers and body ground to check for a short circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition L1-3 (+) - Body ground Always 10 kohms or higher L1-4 (-) - Body ground Always 10 kohms or higher K1-3 (+) - Body ground Always 10 kohms or higher K1-4 (-) - Body ground Always 10 kohms or higher Measure the resistance between each of the front No. 1 speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-3 (WFL+) - J2-1 Always Below 1 ohms O16-8 (WFL-) - J2-2 Always Below 1 ohms O16-10 (WFR+) - I3-1 Always Below 1 ohms O16-9 (WFR-) - I3-2 Always Below 1 ohms Measure the resistance between each of the front No. 2 speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-3 (FL+) - J4-1 (TWL+) Always Below 1 ohms O17-9 (FL-) - J4-2 (TWL-) Always Below 1 ohms O17-4 (FR+) - I5-1 (TWR+) Always Below 1 ohms O17-10 (FR-) - I5-2 (TWR-) Always Below 1 ohms Measure the resistance between the front No. 4 speaker and stereo component assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-8 (CTR+) - H2-2 Always Below 1 ohms O17-7 (CTR-) - H2-1 Always Below 1 ohms Measure the resistance between each of the rear No. 2 speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-4 (RL+) - L1-1 (+TW) Always Below 1 ohms O16-11 (RL-) - L1-2 (-TW) Always Below 1 ohms O16-5 (RR+) - K1-1 (+TW) Always Below 1 ohms O16-12 (RR-) - K1-2 (-TW) Always Below 1 ohms Measure the resistance between the rear No. 3 speaker and stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-1 (WF1+) - P22-1 (WF1+) Always Below 1 ohms O17-5 (WF1-) - P22-3 (WF1-) Always Below 1 ohms O17-2 (WF2+) - P22-2 (WF2+) Always Below 1 ohms O17-6 (WF2-) - P22-4 (WF2-) Always Below 1 ohms Measure the resistance between each of the front No. 2 speakers and the front No. 3 speakers to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition I5-3 (+) - I6-2 Always Below 1 ohms I5-4 (-) - I6-1 Always Below 1 ohms J4-3 (+) - J6-2 Always Below 1 ohms J4-4 (-) - J6-1 Always Below 1 ohms Measure the resistance between each of the rear No. 2 speakers and the rear No. 1 speakers to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition L1-3 (+) - L4-1 Always Below 1 ohms L1-4 (-) - L4-2 Always Below 1 ohms K1-3 (+) - K4-1 Always Below 1 ohms K1-4 (-) - K4-2 Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
2. INSPECT FRONT NO. 1 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition J2-1 - J2-2 Always 3.2 to 4.8 ohms I3-1 - I3-2 Always 3.2 to 4.8 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Front No. 1 Speaker) NG --> See step 9 OK: Go to next step
3. INSPECT FRONT NO. 2 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I5-1 (TWR+) - I5-2 (TWR-) Always 10 kohms or higher J4-1 (TWL+) - J4-2 (TWL-) Always 10 kohms or higher TEXT IN ILLUSTRATION *A for RH *B for LH *1 Component without harness connected (Front No. 2 Speaker) NG --> See step 10 OK: Go to next step
4. INSPECT FRONT NO. 3 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I6-1 - I6-2 Always 3.2 to 4.8 ohms J6-1 - J6-2 Always 3.2 to 4.8 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Front No. 3 Speaker) NG --> See step 11 OK: Go to next step
5. INSPECT FRONT NO. 4 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition H2-1 - H2-2 Always 4.8 to 7.2 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Front No. 4 Speaker) NG --> See step 14 OK: Go to next step
6. INSPECT REAR NO. 1 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L4-1 - L4-2 Always 3.2 to 4.8 ohms K4-1 - K4-2 Always 3.2 to 4.8 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Rear No. 1 Speaker) NG --> See step 12 OK: Go to next step
7. INSPECT REAR NO. 2 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L1-1 (+TW) - L1-2 (-TW) Always 10 kohms or higher K1-1 (+TW) - K1-2 (-TW) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Rear No. 2 Speaker) NG --> See step 13 OK: Go to next step
8. INSPECT REAR NO. 3 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition P22-1 (WF1+) - P22-3 (WF1-) Always 2.4 to 3.6 ohms P22-2 (WF2+) - P22-4 (WF2-) Always 2.4 to 3.6 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Rear No. 3 Speaker) NG --> See step 16 OK --> See step 15
9. REPLACE FRONT NO. 1 SPEAKER. Refer to «REMOVAL»(ref-400843-S08190069122011051800000)
10. REPLACE FRONT NO. 2 SPEAKER. Refer to «REMOVAL»(ref-400843-S08190069122011051800000)
11. REPLACE FRONT NO. 3 SPEAKER. Refer to «REMOVAL»(ref-400843-S08190069122011051800000)
12. REPLACE REAR NO. 1 SPEAKER. Refer to «REMOVAL»(ref-400843-S09530420522011051800000)
13. REPLACE REAR NO. 2 SPEAKER. Refer to «REMOVAL»(ref-400843-S09530420522011051800000)
14. REPLACE FRONT NO. 4 SPEAKER. Refer to «REMOVAL»(ref-400843-S08255986472011051800000)
15. REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY. Refer to «REMOVAL»(ref-400843-S40446017332011051800000)
16. REPLACE REAR NO. 3 SPEAKER. Refer to «REMOVAL»(ref-400843-S38737530202011051800000)

This DTC is stored when a malfunction occurs in the speakers.

1. *1: w/ Manual (SOS) Switch

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1. CHECK DTC Disconnect stereo component amplifier assembly connectors O16 and O17. Clear the DTCs and recheck for DTCs. Check if DTC B15C3 is output. OK DTC B15C3 is not output. NG --> See step 20 OK: Go to next step
2. CHECK OPERATION Reconnect stereo component amplifier assembly connector O17. Check if DTC B15C3 is output. OK DTC B15C3 is not output. NG --> See step 8 OK: Go to next step
3. CHECK HARNESS AND CONNECTOR Disconnect the connectors shown in the illustration from the stereo component amplifier assembly and speakers. TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Stereo Component Amplifier Assembly) *2 Front view of wire harness connector (to Rear No. 2 Speaker) *3 Front view of wire harness connector (to Front No. 1 Speaker, Rear No. 1 Speaker) Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-3 (WFL+) - Body ground Always 10 kohms or higher O16-8 (WFL-) - Body ground Always 10 kohms or higher O16-10 (WFR+) - Body ground Always 10 kohms or higher O16-9 (WFR-) - Body ground Always 10 kohms or higher O16-4 (RL+) - Body ground Always 10 kohms or higher O16-11 (RL-) - Body ground Always 10 kohms or higher O16-5 (RR+) - Body ground Always 10 kohms or higher O16-12 (RR-) - Body ground Always 10 kohms or higher for 12 Speakers: Measure the resistance between each of the rear No. 2 speakers and body ground to check for a short circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition L1-3 (+) - Body ground Always 10 kohms or higher L1-4 (-) - Body ground Always 10 kohms or higher K1-3 (+) - Body ground Always 10 kohms or higher K1-4 (-) - Body ground Always 10 kohms or higher Measure the resistance between each of the front No. 1 speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-3 (WFL+) - J2-1 Always Below 1 ohms O16-8 (WFL-) - J2-2 Always Below 1 ohms O16-10 (WFR+) - I3-1 Always Below 1 ohms O16-9 (WFR-) - I3-2 Always Below 1 ohms for 9 Speakers: Measure the resistance between each of the rear No. 1 speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-4 (RL+) - L4-1 Always Below 1 ohms O16-11 (RL-) - L4-2 Always Below 1 ohms O16-5 (RR+) - K4-1 Always Below 1 ohms O16-12 (RR-) - K4-2 Always Below 1 ohms for 12 Speakers: Measure the resistance between each of the rear No. 2 speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-4 (RL+) - L1-1 (+TW) Always Below 1 ohms O16-11 (RL-) - L1-2 (-TW) Always Below 1 ohms O16-5 (RR+) - K1-1 (+TW) Always Below 1 ohms O16-12 (RR-) - K1-2 (-TW) Always Below 1 ohms for 12 Speakers: Measure the resistance between each of the rear No. 2 speakers and the rear No. 1 speakers to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition L1-3 (+) - L4-1 Always Below 1 ohms L1-4 (-) - L4-2 Always Below 1 ohms K1-3 (+) - K4-1 Always Below 1 ohms K1-4 (-) - K4-2 Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. INSPECT FRONT NO. 1 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition J2-1 - J2-2 Always 3.2 to 4.8 ohms I3-1 - I3-2 Always 3.2 to 4.8 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Front No. 1 Speaker) NG --> See step 13 OK: Go to next step
5. INSPECT FRONT NO. 4 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition H2-1 - H2-2 Always 4.8 to 7.2 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Front No. 4 Speaker) NG --> See step 16 OK: Go to next step
6. INSPECT REAR NO. 1 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L4-1 - L4-2 Always 3.2 to 4.8 ohms K4-1 - K4-2 Always 3.2 to 4.8 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Rear No. 1 Speaker) Proceed to the next step based on the inspection result. Result Condition Proceed to OK (for 12 Speakers) A OK (for 9 Speakers) B NG C C --> See step 17 B --> See step 20 A: Go to next step
7. INSPECT REAR NO. 2 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L1-1 (+TW) - L1-2 (-TW) Always 10 kohms or higher K1-1 (+TW) - K1-2 (-TW) Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Rear No. 2 Speaker) NG --> See step 18 OK --> See step 20
8. CHECK HARNESS AND CONNECTOR Disconnect the connectors shown in the illustration from the stereo component amplifier assembly, DCM (telematics transceiver)*1 and speakers. *1: w/ Manual (SOS) Switch TEXT IN ILLUSTRATION *A for 12 Speakers *B for LH *C for RH *D w/ Manual (SOS) Switch *1 Front view of wire harness connector (to Stereo Component Amplifier Assembly) *2 Front view of wire harness connector (to Front No. 2 Speaker) *3 Front view of wire harness connector (to Front No. 3 Speaker, Front No. 4 Speaker) *4 Front view of wire harness connector (to Rear No. 3 Speaker) *5 Front view of wire harness connector (to DCM (Telematics Transceiver)) Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-1 (WF1+) - Body ground Always 10 kohms or higher O17-5 (WF1-) - Body ground Always 10 kohms or higher O17-2 (WF2+) - Body ground Always 10 kohms or higher O17-6 (WF2-) - Body ground Always 10 kohms or higher O17-4 (FR+) - Body ground Always 10 kohms or higher O17-10 (FR-) - Body ground Always 10 kohms or higher O17-3 (FL+) - Body ground Always 10 kohms or higher O17-9 (FL-) - Body ground Always 10 kohms or higher O17-8 (CTR+) - Body ground Always 10 kohms or higher O17-7 (CTR-) - Body ground Always 10 kohms or higher Measure the resistance between each of the front No. 2 speakers and body ground to check for a short circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition I5-3 (+) - Body ground Always 10 kohms or higher I5-4 (-) - Body ground Always 10 kohms or higher J4-3 (+) - Body ground Always 10 kohms or higher J4-4 (-) - Body ground Always 10 kohms or higher w/ Manual (SOS) Switch: Measure the resistance between the front No. 2 speaker RH and body ground to check for a short circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition I5-1 (TWR+) - Body ground Always 10 kohms or higher I5-2 (TWR-) - Body ground Always 10 kohms or higher Measure the resistance between the front No. 2 speaker LH and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-3 (FL+) - J4-1 (TWL+) Always Below 1 ohms O17-9 (FL-) - J4-2 (TWL-) Always Below 1 ohms w/o Manual (SOS) Switch: Measure the resistance between the front No. 2 speaker RH and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-4 (FR+) - I5-1 (TWR+) Always Below 1 ohms O17-10 (FR-) - I5-2 (TWR-) Always Below 1 ohms w/ Manual (SOS) Switch: Measure the resistance between the stereo component amplifier assembly and the DCM (telematics transceiver) to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-4 (FR+) - G25-2 (SPI+) Always Below 1 ohms O17-10 (FR-) - G25-3 (SPI-) Always Below 1 ohms w/ Manual (SOS) Switch: Measure the resistance between the front No. 2 speaker RH and the DCM (telematics transceiver) to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition G25-5 (SPO+) - I5-1 (TWR+) Always Below 1 ohms G25-6 (SPO-) - I5-2 (TWR-) Always Below 1 ohms Measure the resistance between the front No. 4 speaker and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-8 (CTR+) - H2-2 Always Below 1 ohms O17-7 (CTR-) - H2-1 Always Below 1 ohms Measure the resistance between the rear No. 3 speaker and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-1 (WF1+) - P22-1 (WF1+) Always Below 1 ohms O17-5 (WF1-) - P22-3 (WF1-) Always Below 1 ohms O17-2 (WF2+) - P22-2 (WF2+) Always Below 1 ohms O17-6 (WF2-) - P22-4 (WF2-) Always Below 1 ohms Measure the resistance between each of the front No. 2 speakers and the front No. 3 speakers to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition I5-3 (+) - I6-2 Always Below 1 ohms I5-4 (-) - I6-1 Always Below 1 ohms J4-3 (+) - J6-2 Always Below 1 ohms J4-4 (-) - J6-1 Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
9. INSPECT FRONT NO. 2 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I5-1 (TWR+) - I5-2 (TWR-) Always 10 kohms or higher J4-1 (TWL+) - J4-2 (TWL-) Always 10 kohms or higher TEXT IN ILLUSTRATION *A for RH *B for LH *1 Component without harness connected (Front No. 2 Speaker) NG --> See step 14 OK: Go to next step
10. INSPECT FRONT NO. 3 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I6-1 - I6-2 Always 3.2 to 4.8 ohms J6-1 - J6-2 Always 3.2 to 4.8 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Front No. 3 Speaker) Proceed to the next step based on the inspection result. Result Condition Proceed to OK (for 12 Speakers) A OK (for 9 Speakers, w/ Manual (SOS) Switch) B OK (for 9 Speakers, w/o Manual (SOS) Switch) C NG D D --> See step 15 C --> See step 20 B --> See step 12 A: Go to next step
11. INSPECT REAR NO. 3 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition P22-1 (WF1+) - P22-3 (WF1-) Always 2.4 to 3.6 ohms P22-2 (WF2+) - P22-4 (WF2-) Always 2.4 to 3.6 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Rear No. 3 Speaker) Proceed to the next step based on the inspection result. Result Condition Proceed to OK (w/ Manual (SOS) Switch) A OK (w/o Manual (SOS) Switch) B NG C C --> See step 19 B --> See step 20 A: Go to next step
12. INSPECT DCM (TELEMATICS TRANSCEIVER) Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G25-2 (SPI+) - G25-5 (SPO+) Always Below 1 ohms G25-3 (SPI-) - G25-6 (SPO-) Always Below 1 ohms G25-2 (SPI+) - G25-3 (SPI-) Always 10 kohms or higher G25-5 (SPO+) - G25-6 (SPO-) Always 10 kohms or higher G25-3 (SPI-) - Body ground Always 10 kohms or higher G25-6 (SPO-) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (DCM (Telematics Transceiver)) NG --> See step 21 OK --> See step 20
13. REPLACE FRONT NO. 1 SPEAKER. Refer to «REMOVAL»(ref-400843-S02966766632011051800000)
14. REPLACE FRONT NO. 2 SPEAKER. Refer to «REMOVAL»(ref-400843-S02966766632011051800000)
15. REPLACE FRONT NO. 3 SPEAKER. Refer to «REMOVAL»(ref-400843-S02966766632011051800000)
16. REPLACE FRONT NO. 4 SPEAKER. Refer to «REMOVAL»(ref-400843-S02781686142011051800000)
17. REPLACE REAR NO. 1 SPEAKER. Refer to «REMOVAL»(ref-400843-S10048254872011051800000)
18. REPLACE REAR NO. 2 SPEAKER. Refer to «REMOVAL»(ref-400843-S10048254872011051800000)
19. REPLACE REAR NO. 3 SPEAKER. Refer to «REMOVAL»(ref-400843-S26542843052011051800000)
20. REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY. Refer to «REMOVAL»(ref-400843-S08684925522011051800000)
21. REPLACE DCM (TELEMATICS TRANSCEIVER). Refer to «REMOVAL»(ref-400886-S38027696782011051800000)

This DTC is stored when a malfunction occurs in communication error with USB device or "iPod".

This DTC is stored when a malfunction occurs in communication error with USB device or "iPod".

This DTC is stored when signals from disc in the radio receiver assembly cannot be read.

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1. CHECK DISC Check that the disc is not deformed or cracked. OK No deformation or cracks on the disc NG --> CHANGE DISC OK: Go to next step
2. DISC CLEANING Disc cleaning If dirt is on the disc surface, wipe it clean with a soft cloth from the inside to the outside in a radial direction. NOTE: Do not use a conventional record cleaner or anti-static preservative. NEXT: Go to next step
3. REPLACE DISC WITH ANOTHER AND RECHECK Replace the disc with another and recheck. Clear the DTC. Refer to «DTC CHECK / CLEAR»(ref-400881-S03422425642011051800000) . Recheck for DTC and check if the same trouble occurs again. OK No DTC is output. NG --> See step 4 OK --> END
4. REPLACE RADIO RECEIVER ASSEMBLY. Refer to «REMOVAL»(ref-400843-S35792232142011051800000)

This DTC is stored when signals from disc in the radio receiver assembly cannot be read.

This DTC is stored when a malfunction occurs in the satellite radio antenna which is connected to the radio receiver assembly.

This DTC is stored when a malfunction occurs in the satellite radio antenna which is connected to the radio receiver assembly.

Power is supplied to the radio receiver assembly illumination when the light control switch is in the tail or head position.

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1. CHECK ILLUMINATION Check if the illumination for the radio receiver assembly, heater control switch or others (hazard switch, transmission control switch, etc.) comes on when the light control switch is turned to the head or tail position. Result Result Proceed to Illumination comes on for all components except radio receiver assembly. A No illumination comes on (radio receiver assembly, hazard switch, heater control switch, etc.). B B --> See step 5 A: Go to next step
2. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400881-S26472401432011051800000)
3. CHECK HARNESS AND CONNECTOR (BATTERY - RADIO RECEIVER ASSEMBLY) Disconnect the radio receiver assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition G12-3 (ILL+) - Body ground Light control switch tail or head 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Radio Receiver Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
4. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY) Disconnect the radio receiver assembly connector and combination meter assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G12-17 (ILL-) - F15-15 (ILL-) Always Below 1 ohms F15-16 (E2) - Body ground Always Below 1 ohms E15-15 (ILL-) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Radio Receiver Assembly) *2 Front view of wire harness connector (to Combination Meter Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 2
5. GO TO LIGHTING SYSTEM. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400862-S31953522912011051800000)

Power is supplied to the radio receiver assembly illumination when the light control switch is in the tail or head position.

If there is a short in speaker circuit, the stereo component amplifier assembly detects the short and stops output to the speakers.

Thus sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly or speakers.

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1. CHECK HARNESS AND CONNECTOR Disconnect the connectors shown in the illustration from the stereo component amplifier assembly and speakers. Measure the resistance between each of the front No. 1 speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-3 (WFL+) - J2-1 Always Below 1 ohms O16-8 (WFL-) - J2-2 Always Below 1 ohms O16-10 (WFR+) - I3-1 Always Below 1 ohms O16-9 (WFR-) - I3-2 Always Below 1 ohms Measure the resistance between each of the front No. 2 speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-3 (FL+) - J4-1 (TWL+) Always Below 1 ohms O17-9 (FL-) - J4-2 (TWL-) Always Below 1 ohms O17-4 (FR+) - I5-1 (TWR+) Always Below 1 ohms O17-10 (FR-) - I5-2 (TWR-) Always Below 1 ohms Measure the resistance between the front No. 4 speaker and stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-8 (CTR+) - H2-2 Always Below 1 ohms O17-7 (CTR-) - H2-1 Always Below 1 ohms Measure the resistance between each of the rear No. 2 speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-4 (RL+) - L1-1 (+TW) Always Below 1 ohms O16-11 (RL-) - L1-2 (-TW) Always Below 1 ohms O16-5 (RR+) - K1-1 (+TW) Always Below 1 ohms O16-12 (RR-) - K1-2 (-TW) Always Below 1 ohms Measure the resistance between the rear No. 3 speaker and stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-1 (WF1+) - P22-1 (WF1+)*12 Always Below 1 ohms O17-5 (WF1-) - P22-3 (WF1-)*10 Always Below 1 ohms O17-2 (WF2+) - P22-2 (WF2+)*12 Always Below 1 ohms O17-6 (WF2-) - P22-4 (WF2-)*10 Always Below 1 ohms for 15 Speakers: Measure the resistance between each of the quarter side speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-1 (SL+) - P30-2 Always Below 1 ohms O16-6 (SL-) - P30-1 Always Below 1 ohms O16-2 (SR+) - O24-2 Always Below 1 ohms O16-7 (SR-) - O24-1 Always Below 1 ohms Measure the resistance between each of the front No. 2 speakers and the front No. 3 speakers to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition I5-3 (+) - I6-2 Always Below 1 ohms I5-4 (-) - I6-1 Always Below 1 ohms J4-3 (+) - J6-2 Always Below 1 ohms J4-4 (-) - J6-1 Always Below 1 ohms Measure the resistance between each of the rear No. 2 speakers and the rear No. 1 speakers to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition L1-3 (+) - L4-1 Always Below 1 ohms L1-4 (-) - L4-2 Always Below 1 ohms K1-3 (+) - K4-1 Always Below 1 ohms K1-4 (-) - K4-2 Always Below 1 ohms Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-1 (SL+) - Body ground*11 Always 10 kohms or higher O16-6 (SL-) - Body ground*11 Always 10 kohms or higher O16-3 (WFL+) - Body ground Always 10 kohms or higher O16-8 (WFL-) - Body ground Always 10 kohms or higher O16-10 (WFR+) - Body ground Always 10 kohms or higher O16-9 (WFR-) - Body ground Always 10 kohms or higher O16-4 (RL+) - Body ground Always 10 kohms or higher O16-11 (RL-) - Body ground Always 10 kohms or higher O16-5 (RR+) - Body ground Always 10 kohms or higher O16-12 (RR-) - Body ground Always 10 kohms or higher O16-2 (SR+) - Body ground*11 Always 10 kohms or higher O16-7 (SR-) - Body ground*11 Always 10 kohms or higher O17-1 (WF1+) - Body ground*12 Always 10 kohms or higher O17-5 (WF1-) - Body ground*10 Always 10 kohms or higher O17-2 (WF2+) - Body ground*12 Always 10 kohms or higher O17-6 (WF2-) - Body ground*10 Always 10 kohms or higher O17-4 (FR+) - Body ground Always 10 kohms or higher O17-10 (FR-) - Body ground Always 10 kohms or higher O17-3 (FL+) - Body ground Always 10 kohms or higher O17-9 (FL-) - Body ground Always 10 kohms or higher O17-8 (CTR+) - Body ground Always 10 kohms or higher O17-7 (CTR-) - Body ground Always 10 kohms or higher Measure the resistance between each of the front No. 2 speakers and body ground to check for a short circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition I5-3 (+) - Body ground Always 10 kohms or higher I5-4 (-) - Body ground Always 10 kohms or higher J4-3 (+) - Body ground Always 10 kohms or higher J4-4 (-) - Body ground Always 10 kohms or higher Measure the resistance between each of the rear No. 2 speakers and body ground to check for a short circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition L1-3 (+) - Body ground Always 10 kohms or higher L1-4 (-) - Body ground Always 10 kohms or higher K1-3 (+) - Body ground Always 10 kohms or higher K1-4 (-) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Stereo Component Amplifier Assembly) *2 Front view of wire harness connector (to Stereo Component Amplifier Assembly) *3 Front view of wire harness connector (to Front No. 2 Speaker) *4 Front view of wire harness connector (to Front No. 3 Speaker, Front No. 4 Speaker, Quarter Side Speaker*11) *5 Front view of wire harness connector (to Front No. 1 Speaker, Rear No. 1 Speaker) *6 Front view of wire harness connector (to Rear No. 2 Speaker) *7 Front view of wire harness connector (to Rear No. 3 Speaker) *10: for 12 Speakers *11: for 15 Speakers *12: for 12 or 15 Speakers NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
2. INSPECT FRONT NO. 1 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance FOR 12 SPEAKERS Tester Connection Condition Specified Condition J2-1 - J2-2 Always 3.2 to 4.8 ohms I3-1 - I3-2 Always 3.2 to 4.8 ohms FOR 15 SPEAKERS Tester Connection Condition Specified Condition J2-1 - J2-2 Always 5.0 to 7.0 ohms I3-1 - I3-2 Always 5.0 to 7.0 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Front No. 1 Speaker) NG --> See step 13 OK: Go to next step
3. INSPECT FRONT NO. 2 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I5-1 (TWR+) - I5-2 (TWR-) Always 10 kohms or higher I5-1 (TWR+) - I5-3 (+) Always Below 1 ohms I5-2 (TWR-) - I5-4 (-) Always Below 1 ohms J4-1 (TWL+) - J4-2 (TWL-) Always 10 kohms or higher J4-1 (TWL+) - J4-3 (+) Always Below 1 ohms J4-2 (TWL-) - J4-4 (-) Always Below 1 ohms TEXT IN ILLUSTRATION *A for RH *B for LH *1 Component without harness connected (Front No. 2 Speaker) NG --> See step 14 OK: Go to next step
4. REPLACE FRONT NO. 2 SPEAKER Check that the malfunction disappears when a known good speaker is installed. Refer to «REMOVAL»(ref-400843-S08190069122011051800000) . OK Malfunction disappears. HINT: Connect all the connectors to the front No. 2 speakers that were disconnected. 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 --> See step 5 OK --> END (FRONT NO. 2 SPEAKER WAS DEFECTIVE)
5. INSPECT FRONT NO. 3 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance FOR 12 SPEAKERS Tester Connection Condition Specified Condition I6-1 - I6-2 Always 3.2 to 4.8 ohms J6-1 - J6-2 Always 3.2 to 4.8 ohms FOR 15 SPEAKERS Tester Connection Condition Specified Condition I6-1 - I6-2 Always 4.8 to 6.4 ohms J6-1 - J6-2 Always 4.8 to 6.4 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Front No. 3 Speaker) NG --> See step 15 OK: Go to next step
6. INSPECT FRONT NO. 4 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance FOR 12 SPEAKERS Tester Connection Condition Specified Condition H2-1 - H2-2 Always 4.8 to 7.2 ohms FOR 15 SPEAKERS Tester Connection Condition Specified Condition H2-1 - H2-2 Always 4.6 to 7.0 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Front No. 4 Speaker) NG --> See step 16 OK: Go to next step
7. INSPECT REAR NO. 1 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance FOR 12 SPEAKERS Tester Connection Condition Specified Condition L4-1 - L4-2 Always 3.2 to 4.8 ohms K4-1 - K4-2 Always 3.2 to 4.8 ohms FOR 15 SPEAKERS Tester Connection Condition Specified Condition L4-1 - L4-2 Always 4.8 to 7.2 ohms K4-1 - K4-2 Always 4.8 to 7.2 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Rear No. 1 Speaker) NG --> See step 17 OK: Go to next step
8. INSPECT REAR NO. 2 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L1-1 (+TW) - L1-2 (-TW) Always 10 kohms or higher L1-1 (+TW) - L1-3 (+) Always Below 1 ohms L1-2 (-TW) - L1-4 (-) Always Below 1 ohms K1-1 (+TW) - K1-2 (-TW) Always 10 kohms or higher K1-1 (+TW) - K1-3 (+) Always Below 1 ohms K1-2 (-TW) - K1-4 (-) Always Below 1 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Rear No. 2 Speaker) NG --> See step 18 OK: Go to next step
9. REPLACE REAR NO. 2 SPEAKER Check that the malfunction disappears when a known good speaker is installed. Refer to «REMOVAL»(ref-400843-S09530420522011051800000) . OK Malfunction disappears. HINT: Connect all the connectors to the rear No. 2 speakers that were disconnected. 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 --> See step 10 OK: Go to next step
10. INSPECT REAR NO. 3 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance FOR 12 SPEAKERS Tester Connection Condition Specified Condition P22-1 (WF1+) - P22-3 (WF1-) Always 2.4 to 3.6 ohms P22-2 (WF2+) - P22-4 (WF2-) Always 2.4 to 3.6 ohms FOR 15 SPEAKERS Tester Connection Condition Specified Condition P22-1 (WF1+) - P22-2 (WF2+) Always 11.6 to 12.4 ohms TEXT IN ILLUSTRATION *A for 12 Speakers *1 Component without harness connected (Rear No. 3 Speaker) NG --> See step 19 OK: Go to next step
11. CONFIRM MODEL RESULT Result Proceed to for 15 Speakers A for 12 Speakers B B --> See step 21 A: Go to next step
12. INSPECT QUARTER SIDE SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition O24-1 - O24-2 Always 4.6 to 7.0 ohms P30-1 - P30-2 Always 4.6 to 7.0 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Quarter Side Speaker) NG --> See step 20 OK --> See step 21
13. REPLACE FRONT NO. 1 SPEAKER. Refer to «REMOVAL»(ref-400843-S08190069122011051800000)
14. REPLACE FRONT NO. 2 SPEAKER. Refer to «REMOVAL»(ref-400843-S08190069122011051800000)
15. REPLACE FRONT NO. 3 SPEAKER. Refer to «REMOVAL»(ref-400843-S08190069122011051800000)
16. REPLACE FRONT NO. 4 SPEAKER. Refer to «REMOVAL»(ref-400843-S08255986472011051800000)
17. REPLACE REAR NO. 1 SPEAKER. Refer to «REMOVAL»(ref-400843-S09530420522011051800000)
18. REPLACE REAR NO. 2 SPEAKER. Refer to «REMOVAL»(ref-400843-S09530420522011051800000)
19. REPLACE REAR NO. 3 SPEAKER. Refer to «REMOVAL»(ref-400843-S38737530202011051800000)
20. REPLACE QUARTER SIDE SPEAKER. Refer to «REMOVAL»(ref-400843-S38737530202011051800000)
21. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400881-S26472401432011051800000)

If there is a short in a speaker circuit, the stereo component amplifier assembly detects the short and stops output to the speakers.

Thus sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly or speakers.

Scheme 216

Scheme 217

Scheme 218

1. CHECK HARNESS AND CONNECTOR Disconnect the connectors shown in the illustration from the stereo component amplifier assembly, DCM (telematics transceiver)*1 and speakers. *1: w/ Manual (SOS) Switch TEXT IN ILLUSTRATION *A for 12 or 15 Speakers *B for LH *C for RH *D for 15 Speakers *E for 12 Speakers *F w/ Manual (SOS) Switch *1 Front view of wire harness connector (to Stereo Component Amplifier Assembly) *2 Front view of wire harness connector (to Front No. 2 Speaker) *3 Front view of wire harness connector (to Front No. 3 Speaker, Front No. 4 Speaker) *4 Front view of wire harness connector (to Rear No. 3 Speaker) *5 Front view of wire harness connector (to DCM (Telematics Transceiver)) *6 Front view of wire harness connector (to Stereo Component Amplifier Assembly) *7 Front view of wire harness connector (to Rear No. 2 Speaker) *8 (to Front No. 1 Speaker, Rear No. 1 Speaker) Measure the resistance between each of the front No. 1 speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-3 (WFL+) - J2-1 Always Below 1 ohms O16-8 (WFL-) - J2-2 Always Below 1 ohms O16-10 (WFR+) - I3-1 Always Below 1 ohms O16-9 (WFR-) - I3-2 Always Below 1 ohms Measure the resistance between the front No. 2 speaker LH and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-3 (FL+) - J4-1 (TWL+) Always Below 1 ohms O17-9 (FL-) - J4-2 (TWL-) Always Below 1 ohms w/o Manual (SOS) Switch: Measure the resistance between the front No. 2 speaker RH and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-4 (FR+) - I5-1 (TWR+) Always Below 1 ohms O17-10 (FR-) - I5-2 (TWR-) Always Below 1 ohms w/ Manual (SOS) Switch: Measure the resistance between the stereo component amplifier assembly and the DCM (telematics transceiver) to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-4 (FR+) - G25-2 (SPI+) Always Below 1 ohms O17-10 (FR-) - G25-3 (SPI-) Always Below 1 ohms w/ Manual (SOS) Switch: Measure the resistance between the front No. 2 speaker RH and the DCM (telematics transceiver) to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition G25-5 (SPO+) - I5-1 (TWR+) Always Below 1 ohms G25-6 (SPO-) - I5-2 (TWR-) Always Below 1 ohms Measure the resistance between the front No. 4 speaker and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-8 (CTR+) - H2-2 Always Below 1 ohms O17-7 (CTR-) - H2-1 Always Below 1 ohms for 9 Speakers: Measure the resistance between each of the rear No. 1 speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-4 (RL+) - L4-1 Always Below 1 ohms O16-11 (RL-) - L4-2 Always Below 1 ohms O16-5 (RR+) - K4-1 Always Below 1 ohms O16-12 (RR-) - K4-2 Always Below 1 ohms for 12 or 15 Speakers: Measure the resistance between each of the rear No. 2 speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-4 (RL+) - L1-1 (+TW) Always Below 1 ohms O16-11 (RL-) - L1-2 (-TW) Always Below 1 ohms O16-5 (RR+) - K1-1 (+TW) Always Below 1 ohms O16-12 (RR-) - K1-2 (-TW) Always Below 1 ohms for 12 or 15 Speakers: Measure the resistance between the rear No. 3 speaker and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O17-1 (WF1+) - P22-1 (WF1+) Always Below 1 ohms O17-5 (WF1-) - P22-3 (WF1-)*1 Always Below 1 ohms O17-2 (WF2+) - P22-2 (WF2+) Always Below 1 ohms O17-6 (WF2-) - P22-4 (WF2-)*1 Always Below 1 ohms *1: for 12 Speakers Measure the resistance between each of the front No. 2 speakers and the front No. 3 speakers to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition I5-3 (+) - I6-2 Always Below 1 ohms I5-4 (-) - I6-1 Always Below 1 ohms J4-3 (+) - J6-2 Always Below 1 ohms J4-4 (-) - J6-1 Always Below 1 ohms for 12 or 15 Speakers Measure the resistance between each of the rear No. 2 speakers and the rear No. 1 speakers to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition L1-3 (+) - L4-1 Always Below 1 ohms L1-4 (-) - L4-2 Always Below 1 ohms K1-3 (+) - K4-1 Always Below 1 ohms K1-4 (-) - K4-2 Always Below 1 ohms for 15 Speakers: Measure the resistance between each of the quarter side speakers and the stereo component amplifier assembly to check for an open circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-1 (SL+) - P30-2 Always Below 1 ohms O16-6 (SL-) - P30-1 Always Below 1 ohms O16-2 (SR+) - O24-2 Always Below 1 ohms O16-7 (SR-) - O24-1 Always Below 1 ohms Measure the resistance between the stereo component amplifier assembly and body ground to check for a short circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition O16-1 (SL+) - Body ground*1 Always 10 kohms or higher O16-6 (SL-) - Body ground*1 Always 10 kohms or higher O16-3 (WFL+) - Body ground Always 10 kohms or higher O16-8 (WFL-) - Body ground Always 10 kohms or higher O16-10 (WFR+) - Body ground Always 10 kohms or higher O16-9 (WFR-) - Body ground Always 10 kohms or higher O16-4 (RL+) - Body ground Always 10 kohms or higher O16-11 (RL-) - Body ground Always 10 kohms or higher O16-5 (RR+) - Body ground Always 10 kohms or higher O16-12 (RR-) - Body ground Always 10 kohms or higher O16-2 (SR+) - Body ground*1 Always 10 kohms or higher O16-7 (SR-) - Body ground*1 Always 10 kohms or higher O17-1 (WF1+) - Body ground*3 Always 10 kohms or higher O17-5 (WF1-) - Body ground*2 Always 10 kohms or higher O17-2 (WF2+) - Body ground*3 Always 10 kohms or higher O17-6 (WF2-) - Body ground*2 Always 10 kohms or higher O17-4 (FR+) - Body ground Always 10 kohms or higher O17-10 (FR-) - Body ground Always 10 kohms or higher O17-3 (FL+) - Body ground Always 10 kohms or higher O17-9 (FL-) - Body ground Always 10 kohms or higher O17-8 (CTR+) - Body ground Always 10 kohms or higher O17-7 (CTR-) - Body ground Always 10 kohms or higher *1: for 15 Speakers *2: for 12 Speakers *3: for 12 or 15 Speakers Measure the resistance between each of the front No. 2 speakers and body ground to check for a short circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition I5-3 (+) - Body ground Always 10 kohms or higher I5-4 (-) - Body ground Always 10 kohms or higher J4-3 (+) - Body ground Always 10 kohms or higher J4-4 (-) - Body ground Always 10 kohms or higher w/ Manual (SOS) Switch: Measure the resistance between the front No. 2 speaker RH and body ground to check for a short circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition I5-1 (TWR+) - Body ground Always 10 kohms or higher I5-2 (TWR-) - Body ground Always 10 kohms or higher for 12 or 15 Speakers Measure the resistance between each of the rear No. 2 speakers and body ground to check for a short circuit in the wire harness. Standard Resistance Tester Connection Condition Specified Condition L1-3 (+) - Body ground Always 10 kohms or higher L1-4 (-) - Body ground Always 10 kohms or higher K1-3 (+) - Body ground Always 10 kohms or higher K1-4 (-) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
2. INSPECT FRONT NO. 1 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance FOR 9 OR 12 SPEAKERS Tester Connection Condition Specified Condition J2-1 - J2-2 Always 3.2 to 4.8 ohms I3-1 - I3-2 Always 3.2 to 4.8 ohms FOR 15 SPEAKERS Tester Connection Condition Specified Condition J2-1 - J2-2 Always 5.0 to 7.0 ohms I3-1 - I3-2 Always 5.0 to 7.0 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Front No. 1 Speaker) NG --> See step 13 OK: Go to next step
3. INSPECT FRONT NO. 2 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition I5-1 (TWR+) - I5-2 (TWR-) Always 10 kohms or higher I5-1 (TWR+) - I5-3 (+) Always Below 1 ohms I5-2 (TWR-) - I5-4 (-) Always Below 1 ohms J4-1 (TWL+) - J4-2 (TWL-) Always 10 kohms or higher J4-1 (TWL+) - J4-3 (+) Always Below 1 ohms J4-2 (TWL-) - J4-4 (-) Always Below 1 ohms TEXT IN ILLUSTRATION *A for RH *B for LH *1 Component without harness connected (Front No. 2 Speaker) NG --> See step 14 OK: Go to next step
4. REPLACE FRONT NO. 2 SPEAKER Check that the malfunction disappears when a known good speaker is installed. Refer to «REMOVAL»(ref-400843-S02966766632011051800000) . OK Malfunction disappears. HINT: Connect all the connectors to the front No. 2 speakers that were disconnected. 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 --> See step 5 OK --> END (FRONT NO. 2 SPEAKER WAS DEFECTIVE)
5. INSPECT FRONT NO. 3 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance FOR 9 OR 12 SPEAKERS Tester Connection Condition Specified Condition I6-1 - I6-2 Always 3.2 to 4.8 ohms J6-1 - J6-2 Always 3.2 to 4.8 ohms FOR 15 SPEAKERS Tester Connection Condition Specified Condition I6-1 - I6-2 Always 4.8 to 6.4 ohms J6-1 - J6-2 Always 4.8 to 6.4 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Front No. 3 Speaker) NG --> See step 15 OK: Go to next step
6. INSPECT FRONT NO. 4 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance FOR 9 OR 12 SPEAKERS Tester Connection Condition Specified Condition H2-1 - H2-2 Always 4.8 to 7.2 ohms FOR 15 SPEAKERS Tester Connection Condition Specified Condition H2-1 - H2-2 Always 4.6 to 7.0 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Front No. 4 Speaker) NG --> See step 16 OK: Go to next step
7. INSPECT REAR NO. 1 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance FOR 9 OR 12 SPEAKERS Tester Connection Condition Specified Condition L4-1 - L4-2 Always 3.2 to 4.8 ohms K4-1 - K4-2 Always 3.2 to 4.8 ohms FOR 15 SPEAKERS Tester Connection Condition Specified Condition L4-1 - L4-2 Always 4.8 to 7.2 ohms K4-1 - K4-2 Always 4.8 to 7.2 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Rear No. 1 Speaker) Proceed to the next step based on the inspection result. Result Condition Proceed to OK (for 12 or 15 Speakers) A OK (for 9 Speakers, w/ Manual (SOS) Switch) B OK (for 9 Speakers, w/o Manual (SOS) Switch) C NG D D --> See step 17 C --> See step 21 B --> See step 12 A: Go to next step
8. INSPECT REAR NO. 2 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L1-1 (+TW) - L1-2 (-TW) Always 10 kohms or higher L1-1 (+TW) - L1-3 (+) Always Below 1 ohms L1-2 (-TW) - L1-4 (-) Always Below 1 ohms K1-1 (+TW) - K1-2 (-TW) Always 10 kohms or higher K1-1 (+TW) - K1-3 (+) Always Below 1 ohms K1-2 (-TW) - K1-4 (-) Always Below 1 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Rear No. 2 Speaker) NG --> See step 18 OK: Go to next step
9. REPLACE REAR NO. 2 SPEAKER Check that the malfunction disappears when a known good speaker is installed. Refer to «REMOVAL»(ref-400843-S10048254872011051800000) . OK Malfunction disappears. HINT: Connect all the connectors to the rear No. 2 speakers that were disconnected. When there is a possibility that either the right or left rear speaker is defective, inspect by interchanging the right one with the left one. Perform the above inspection on both LH and RH sides. NG --> See step 10 OK --> END (REAR NO. 2 SPEAKER WAS DEFECTIVE)
10. INSPECT REAR NO. 3 SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance FOR 12 SPEAKERS Tester Connection Condition Specified Condition P22-1 (WF1+) - P22-3 (WF1-) Always 2.4 to 3.6 ohms P22-2 (WF2+) - P22-4 (WF2-) Always 2.4 to 3.6 ohms FOR 15 SPEAKERS Tester Connection Condition Specified Condition P22-1 (WF1+) - P22-2 (WF2+) Always 11.6 to 12.4 ohms TEXT IN ILLUSTRATION *A for 12 Speakers *1 Component without harness connected (Rear No. 3 Speaker) Proceed to the next step based on the inspection result. Result Condition Proceed to OK (for 15 Speakers) A OK (for 12 Speakers, w/ Manual (SOS) Switch) B OK (for 12 Speakers, w/o Manual (SOS) Switch) C NG D D --> See step 19 C --> See step 21 B --> See step 12 A: Go to next step
11. INSPECT QUARTER SIDE SPEAKER Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition O24-1 - O24-2 Always 4.6 to 7.0 ohms P30-1 - P30-2 Always 4.6 to 7.0 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Quarter Side Speaker) Proceed to the next step based on the inspection result. Result Condition Proceed to OK (w/ Manual (SOS) Switch) A OK (w/o Manual (SOS) Switch) B NG C C --> See step 20 B --> See step 21 A: Go to next step
12. INSPECT DCM (TELEMATICS TRANSCEIVER) Resistance check Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G25-2 (SPI+) - G25-5 (SPO+) Always Below 1 ohms G25-3 (SPI-) - G25-6 (SPO-) Always Below 1 ohms G25-2 (SPI+) - G25-3 (SPI-) Always 10 kohms or higher G25-5 (SPO+) - G25-6 (SPO-) Always 10 kohms or higher G25-3 (SPI-) - Body ground Always 10 kohms or higher G25-6 (SPO-) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (DCM (Telematics Transceiver)) NG --> See step 22 OK --> See step 21
13. REPLACE FRONT NO. 1 SPEAKER. Refer to «REMOVAL»(ref-400843-S02966766632011051800000)
14. REPLACE FRONT NO. 2 SPEAKER. Refer to «REMOVAL»(ref-400843-S02966766632011051800000)
15. REPLACE FRONT NO. 3 SPEAKER. Refer to «REMOVAL»(ref-400843-S02966766632011051800000)
16. REPLACE FRONT NO. 4 SPEAKER. Refer to «REMOVAL»(ref-400843-S02781686142011051800000)
17. REPLACE REAR NO. 1 SPEAKER. Refer to «REMOVAL»(ref-400843-S10048254872011051800000)
18. REPLACE REAR NO. 2 SPEAKER. Refer to «REMOVAL»(ref-400843-S10048254872011051800000)
19. REPLACE REAR NO. 3 SPEAKER. Refer to «REMOVAL»(ref-400843-S26542843052011051800000)
20. REPLACE QUARTER SIDE SPEAKER. Refer to «REMOVAL»(ref-400843-S03895808582011051800000)
21. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400881-S42432176802011051800000)
22. REPLACE DCM (TELEMATICS TRANSCEIVER). Refer to «REMOVAL»(ref-400886-S38027696782011051800000)

The multi-media interface ECU sends a sound signal to the display and navigation module display through this circuit.

If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, radio receiver assembly, display and navigation module display or speakers.

Scheme 219

Scheme 220

1. CHECK HARNESS AND CONNECTOR Disconnect the display and navigation module display connector and the multi-media interface ECU connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition G23-1 (AGND) - U9-1 (USD1) Always Below 1 ohms G23-3 (VAR+) - U9-2 (URO+) Always Below 1 ohms G23-4 (VAL+) - U9-3 (ULO+) Always Below 1 ohms G23-7 (VA-) - U9-4 (UGD1) Always Below 1 ohms G23-1 (AGND) - Body ground Always 10 kohms or higher G23-3 (VAR+) - Body ground Always 10 kohms or higher G23-4 (VAL+) - Body ground Always 10 kohms or higher G23-7 (VA-) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Display and Navigation Module Display) *2 Front view of wire harness connector (to Multi-media Interface ECU) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 2
2. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400881-S26472401432011051800000)

The multi-media interface ECU sends a sound signal to the display and navigation module display through this circuit.

If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, radio receiver assembly, display and navigation module display, DCM (telematics transceiver)*1 or speakers.

1. *1: w/ Manual (SOS) Switch

The No. 1 stereo jack adapter assembly sends an external device sound signal to the radio receiver assembly through this circuit.

The sound signal that has been sent is amplified by the stereo component amplifier assembly or radio receiver assembly, and then is sent to the speakers.

If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, radio receiver assembly or speakers.

Scheme 221

Scheme 222

1. CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - NO. 1 STEREO JACK ADAPTER ASSEMBLY) Disconnect the No. 1 stereo jack adapter assembly connector and radio receiver assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance W/O USB AUDIO SYSTEM Tester Connection Condition Specified Condition U1-4 (AUXO) - G12-5 (AUXI) Always Below 1 ohms U1-3 (ASGN) - G12-21 (ASGN) Always Below 1 ohms U1-2 (ARO) - G12-19 (ARI) Always Below 1 ohms U1-1 (ALO) - G12-20 (ALI) Always Below 1 ohms U1-5 (AGND) - G12-6 (AGND) Always Below 1 ohms U1-4 (AUXO) - Body ground Always 10 kohms or higher U1-3 (ASGN) - Body ground Always 10 kohms or higher U1-2 (ARO) - Body ground Always 10 kohms or higher U1-1 (ALO) - Body ground Always 10 kohms or higher U1-5 (AGND) - Body ground Always 10 kohms or higher W/ USB AUDIO SYSTEM Tester Connection Condition Specified Condition U12-9 (AUXO) - G12-5 (AUXI) Always Below 1 ohms U12-8 (ASGN) - G12-21 (ASGN) Always Below 1 ohms U12-6 (ARO) - G12-19 (ARI) Always Below 1 ohms U12-7 (ALO) - G12-20 (ALI) Always Below 1 ohms U12-10 (AGND) - G12-6 (AGND) Always Below 1 ohms U12-9 (AUXO) - Body ground Always 10 kohms or higher U12-8 (ASGN) - Body ground Always 10 kohms or higher U12-6 (ARO) - Body ground Always 10 kohms or higher U12-7 (ALO) - Body ground Always 10 kohms or higher U12-10 (AGND) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Radio Receiver Assembly) *2 Front view of wire harness connector (to No. 1 Stereo Jack Adapter Assembly)*4 *3 Front view of wire harness connector (to No. 1 Stereo Jack Adapter Assembly)*5 *4: w/o USB Audio System *5: w/ USB Audio System NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 2
2. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400881-S26472401432011051800000)

The No. 1 stereo jack adapter assembly sends the sound signal from an external device to the radio receiver assembly through this circuit.

The sound signal that has been sent is amplified by the stereo component amplifier assembly or radio receiver assembly, and then is sent to the speakers.

If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, radio receiver assembly, DCM (telematics transceiver)*1 or speakers.

1. *1: w/ Manual (SOS) Switch

The No. 1 stereo jack adapter assembly sends the sound data signal of an external device to the multi-media interface ECU through this circuit.

Scheme 223

Scheme 224

Scheme 225

1. CHECK HARNESS AND CONNECTOR Disconnect the multi-media interface ECU connector. Disconnect the No. 1 stereo jack adapter assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition U11-3 (UDO+) - U12-2 (UDI+) Always Below 1 ohms U11-2 (UDO-) - U12-3 (UDI-) Always Below 1 ohms U11-3 (UDO+) - Body ground Always 10 kohms or higher U11-2 (UDO-) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Multi-media Interface ECU) *2 Front view of wire harness connector (to No. 1 Stereo Jack Adapter Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 2
2. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400881-S26472401432011051800000)

The No. 1 stereo jack adapter assembly sends the sound data signal of an external device to the multi-media interface ECU through this circuit.

The DCM (telematics transceiver) sends a mute signal to the stereo component amplifier assembly.

The stereo component amplifier assembly controls the volume according to the mute signal from the DCM (telematics transceiver).

Scheme 226

Scheme 227

Scheme 228

1. INSPECT DCM (TELEMATICS TRANSCEIVER) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition G25-17 (MUTE) - Body ground Engine switch on (ACC), audio system is playing --> Emergency call mode Above 3.5 V --> Below 1 V TEXT IN ILLUSTRATION *1 Component with harness connected (DCM (Telematics Transceiver)) NG --> See step 2 OK --> See step 4
2. CHECK HARNESS AND CONNECTOR Disconnect the stereo component amplifier assembly connector and DCM (telematics transceiver) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition O15-7 (TMUT) - G25-17 (MUTE) Always Below 1 ohms O15-7 (TMUT) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
3. INSPECT STEREO COMPONENT AMPLIFIER ASSEMBLY Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition O15-7 (MUTE) - Body ground Engine switch on (ACC) Above 3.5 V TEXT IN ILLUSTRATION *1 Component without harness connected (Stereo Component Amplifier Assembly) NG --> See step 6 OK --> See step 5
4. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-400881-S42432176802011051800000)
5. REPLACE DCM (TELEMATICS TRANSCEIVER). Refer to «REMOVAL»(ref-400886-S38027696782011051800000)
6. REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY. Refer to «REMOVAL»(ref-400843-S08684925522011051800000)

The circuit is necessary for the Automatic Sound Levelizer (ASL) built into the stereo component amplifier assembly.

Speed signals are received from the combination meter assembly and used for the ASL.

The ASL function automatically adjusts the sound volume in order to clear audio quality even when vehicle noise increases (as vehicle noise increases, the volume is turned up etc.).

HINT

1. A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter assembly. The signal is changed to a pulse signal at the transistor in the combination meter assembly. Each ECU controls the respective system based on the pulse signal.
2. If a short occurs in any of the ECUs or in the wire harness connected to an ECU, all systems in the diagram below will not operate normally.

Scheme 229

1. for 2GR-FE

Scheme 230

Scheme 231

1. INSPECT COMBINATION METER ASSEMBLY (OUTPUT WAVEFORM) Check the output waveform. Remove the combination meter assembly with the connector still connected. Connect an oscilloscope to terminal F15-3 (+S) and body ground. Turn the engine switch on (IG). Turn the wheel slowly. Check the signal waveform according to the condition(s) in the table below. Item Condition Tool setting 5 V/DIV., 20 ms./DIV. Vehicle condition Driving at approx. 20 km/h (12 mph) OK The waveform is displayed as shown in the illustration. HINT: When the system is functioning normally, one wheel revolution generates 4 pulses. As the vehicle speed increases, the width indicated by (A) in the illustration narrows. TEXT IN ILLUSTRATION *1 Component with harness connected (Combination Meter Assembly) NG --> See step 4 OK: Go to next step
2. CHECK HARNESS AND CONNECTOR Disconnect the stereo component amplifier assembly connector and combination meter assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition O15-2 (SPD) - F15-3 (+S) Always Below 1 ohms TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Stereo Component Amplifier Assembly) *2 Front view of wire harness connector (to Combination Meter Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 3
3. REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY. Refer to «REMOVAL»(ref-400843-S40446017332011051800000)
4. GO TO METER / GAUGE SYSTEM. Refer to «Speed Signal Circuit»(ref-400803-S06809283612011051800000)

The circuit is necessary for the Automatic Sound Levelizer (ASL) built into the stereo component amplifier assembly.

Speed signals are received from the combination meter assembly and used for the ASL.

The Automatic Sound Levelizer (ASL) function automatically adjusts the audio system volume level in order to compensate for increased vehicle noise (vehicle noise tends to increase as vehicle speed increases). The ASL adjusts the volume level based upon vehicle speed signals that it receives from the combination meter.

HINT

1. A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter assembly. The signal is changed to a pulse signal at the transistor in the combination meter assembly. Each ECU controls the respective system based on the pulse signal.
2. If a short occurs in any of the ECUs or in the wire harness connected to an ECU, all systems in the diagram below will not operate normally.

Scheme 232

This circuit provides power to the radio receiver assembly.

Scheme 233

This circuit provides power to the radio receiver assembly.

This circuit provides power to the stereo component amplifier assembly.

Scheme 234

This circuit provides power to the stereo component amplifier assembly.

This circuit provides power to the multi-media interface ECU.

Scheme 235

Scheme 236

Scheme 237

1. INSPECT MULTI-MEDIA INTERFACE ECU Disconnect the multi-media interface ECU connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition U9-12 (+B) - U9-7 (GND) Always 11 to 14 V U9-11 (ACC) - U9-7 (GND) Engine switch on (ACC) 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Multi-media Interface ECU) NG --> See step 2 OK --> PROCEED TO NEXT SUSPECTED AREA SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-400881-S17926638152011051800000) PROBLEM SYMPTOMS TABLE
2. CHECK HARNESS AND CONNECTOR Disconnect the display and navigation module display connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition U9-11 (ACC) - G24-11 (ACC) Always Below 1 ohms U9-12 (+B) - G24-12 (+B) Always Below 1 ohms U9-7 (GND) - G24-7 (GND) Always Below 1 ohms U9-11 (ACC) - Body ground Always 10 kohms or higher U9-12 (+B) - Body ground Always 10 kohms or higher U9-7 (GND) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Multi-media Interface ECU) *2 Front view of wire harness connector (to Display and Navigation Module Display) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 3
3. REPLACE DISPLAY AND NAVIGATION MODULE DISPLAY. Refer to «REMOVAL»(ref-400887-S14221557312011051800000)

This circuit provides power to the multi-media interface ECU.