Note. If the lens of the rearview camera is wiped with chemicals such as alcohol, benzine, thinner, etc., the lens may discolor. To clean the lens of the rearview camera, refer to "Vehicle Cleaning" section of the Owner's Manual.
Scheme 15
Scheme 16
Scheme 17
Scheme 18
Scheme 19
Scheme 20
- Remove audio unit or audio amplifier (with connector connected). Audio unit: «AUDIO UNIT REMOVAL AND INSTALLATION»(ref-585628-S27321720812013111200000) Audio amplifier: «AUDIO AMPLIFIER REMOVAL AND INSTALLATION (IF EQUIPPED)»(ref-585628-S40283303332013111200000)
- Check voltage using circuit tester and oscilloscope. NOTE: Confirm that battery voltage is 11 V or more. An "Ignition mode" in the following table, represents a power supply mode available with keyless push start system. For more details, refer to «DESCRIPTION OF KEYLESS ENGINE START FUNCTION»(ref-585594-S29520072162013111200000) . Outputs from terminals marked with asterisk (*) cannot be measured with voltmeter because they are pulse signals. Use oscilloscope for measuring these outputs.
[A] G231 Connector (Microphone (If Equipped))
| Terminal No. | Wire color | Circuit | Normal voltage | Condition |
|---|---|---|---|---|
| 2* | RED/GRN | Microphone signal | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 3 | BLU | Ground for microphone | Approx. 0 V | Ignition mode: OFF, ACC or ON |
| 4 | GRN | Power source for microphone | Approx. 5 V | Ignition mode: ACC or ON |
TERMINAL VOLTAGE REFERENCE CHART
[B] G248 Connector (Audio Unit)
| Terminal No. | Wire color | Circuit | Normal voltage | Condition |
|---|---|---|---|---|
| 1 | WHT/RED | Power source | Approx. 12 V | Ignition mode: OFF, ACC or ON |
| 2 | RED/YEL | Power source (illumination) | Approx. 12 V | When clearance light is on |
| Approx. 0 V | Other than above condition | |||
| 3* | WHT/GRN (without audio amplifier) | Front speaker (L) (+), tweeter (L) (+), center speaker (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| WHT (with audio amplifier) | Front speaker output for audio amplifier (L) (+) | Audio: ON | ||
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 4* | GRY/RED (without audio amplifier) | Front speaker (R) (+), tweeter (R) (+), center speaker (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| BLK/YEL (with audio amplifier) | Front speaker output for audio amplifier (R) (+) | Audio: ON | ||
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 5* | GRN (without audio amplifier) | Rear speaker (L) (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| BLU/RED (with audio amplifier) | Rear speaker output for audio amplifier (L) (+) | Audio: ON | ||
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 6* | BLU (without audio amplifier) | Rear speaker (R) (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| BLK/WHT (with audio amplifier) | Rear speaker output for audio amplifier (R) (+) | Audio: ON | ||
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 8 | PNK/GRN | Steering switch (hands-free switch) | Approx. 3.2 V | Ignition mode: ACC or ON |
| 9 | WHT | Power source (ACC) | Approx. 12 V | Ignition mode: ACC or ON |
| 11 | BLK | Ground for audio unit | Approx. 0 V | Ignition mode: OFF, ACC or ON |
| 12 | BLU/BLK | Illumination signal | Refer to REFERENCE WAVEFORM. ILLUMINATION SIGNAL | |
| 13* | WHT/BLU (without audio amplifier) | Front speaker (L) (-), tweeter (L) (-), center speaker (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| RED (with audio amplifier) | Front speaker output for audio amplifier (L) (-) | Audio: ON | ||
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 14* | YEL (without audio amplifier) | Front speaker (R) (-), tweeter (R) (-), center speaker (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| LT GRN (with audio amplifier) | Front speaker output for audio amplifier (R) (-) | Audio: ON | ||
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 15* | GRN/BLK (without audio amplifier) | Rear speaker (L) (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| BLU/GRN (with audio amplifier) | Rear speaker output for audio amplifier (L) (-) | Audio: ON | ||
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 16* | BLU/RED (without audio amplifier) | Rear speaker (R) (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| BLU (with audio amplifier) | Rear speaker output for audio amplifier (R) (-) | Audio: ON | ||
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 17 | BRN (with audio amplifier) | Audio amplifier power supply ON signal output | Approx. 12 V | Ignition mode: ACC or ON |
| 18* | PPL | Vehicle speed signal input | Refer to INSPECTION OF BCM AND ITS CIRCUITS . | |
| 19 | PNK | Steering switch (audio control switch) | Approx. 3.2 V | Ignition mode: ACC or ON |
| 20 | PNK/BLK | Ground for steering switch (audio control switch) | Approx. 0 V | Ignition mode: OFF, ACC or ON |
TERMINAL VOLTAGE REFERENCE CHART
[C] G267 Connector (Radio Antenna Feeder)
| Terminal No. | Wire color | Circuit | Normal voltage | Condition |
|---|---|---|---|---|
| 2 | BLK | Power source for antenna amplifier | Approx. 12 V | Audio: ON |
TERMINAL VOLTAGE REFERENCE CHART
[D] L11 Connector (Audio Amplifier (If Equipped))
| Terminal No. | Wire color | Circuit | Normal voltage | Condition |
|---|---|---|---|---|
| 1 | BLU/BLK | Power source | Approx. 12 V | Ignition mode: OFF, ACC or ON |
| 2 | GRY | Sub woofer (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 3 | LT GRN | Sub woofer (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 4 | BLK | Ground for audio amplifier | Approx. 0 V | Ignition mode: OFF, ACC or ON |
| 5 | BLU/BLK | Power source | Approx. 12 V | Ignition mode: OFF, ACC or ON |
| 6 | GRN/YEL | Sub woofer (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 7 | GRN/BLK | Sub woofer (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 8 | BLK | Ground for audio amplifier | Approx. 0 V | Ignition mode: OFF, ACC or ON |
TERMINAL VOLTAGE REFERENCE CHART
[E] L12 Connector (Audio Amplifier (If Equipped))
| Terminal No. | Wire color | Circuit | Normal voltage | Condition |
|---|---|---|---|---|
| 1 | LT GRN | Front speaker input from audio unit (R) (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 2 | RED | Front speaker input from audio unit (L) (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 3 | BLU | Rear speaker input from audio unit (R) (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 4 | BLU/GRN | Rear speaker input from audio unit (L) (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 5 | BRN | Audio amplifier power supply ON signal input | Approx. 12 V | Ignition mode: ACC or ON |
| 6 | BRN/WHT | Center speaker (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 7 | GRN | Rear speaker (L) (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 8 | BLU | Rear speaker (R) (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 9 | BLK/YEL | Tweeter (R) (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 10 | BLK/BLU | Tweeter (L) (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 11 | WHT/GRN | Front speaker (L) (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 12 | GRY/RED | Front speaker (R) (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 13 | BLK/YEL | Front speaker input from audio unit (R) (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 14 | WHT | Front speaker input from audio unit (L) (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 15 | BLK/WHT | Rear speaker input from audio unit (R) (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 16 | BLU/RED | Rear speaker input from audio unit (L) (+) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 18 | BRN/BLU | Center speaker (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 19 | GRN/BLK | Rear speaker (L) (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 20 | BLU/RED | Rear speaker (R) (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 21 | RED | Tweeter (R) (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 22 | RED/BLU | Tweeter (L) (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 23 | WHT/BLU | Front speaker (L) (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
| 24 | YEL | Front speaker (R) (-) | Audio: ON | |
| Refer to REFERENCE WAVEFORM. SPEAKER/MICROPHONE WAVE | ||||
TERMINAL VOLTAGE REFERENCE CHART
[F] G232 Connector (Rearview Camera (If Equipped))
| Terminal No. | Wire color | Circuit | Normal voltage | Condition |
|---|---|---|---|---|
| 1 | BLK | Ground for rearview camera | Approx. 0 V | Ignition mode: OFF, ACC or ON |
| 2 | Ground for rearview camera | Approx. 0 V | Ignition mode: OFF, ACC or ON | |
| 3* | BLU/RED | Rearview image signal input | Audio; ON Select lever position: "R" | |
| Refer to reference waveform. REARVIEW IMAGE SIGNAL | ||||
| 4 | BLU/WHT | Power source for rearview camera | Approx. 6 V | Audio: ON Select lever position: "R" |
| 5 | BLK | Ground for rearview camera | Approx. 0 V | Ignition mode: OFF, ACC or ON |
TERMINAL VOLTAGE REFERENCE CHART
Oscilloscope Display
Shown below is typical waveform display provided by oscilloscope.
Note. Display includes the following types of data: Waveforms may vary with measurement conditions and vehicle specifications.
Speaker/Microphone Wave
Note. Voltage changes depending on sound volume and quality.
Microphone signal (1)
| Channel | Probe | Terminal No. |
|---|---|---|
| 1 | + | G231-2 |
| G231-3 |
TERMINAL CHANNEL REFERENCE CHART
Speaker signal (1)
| Channel | Probe | Terminal No. |
|---|---|---|
| 1 | + | G248-3, G248-4, G248-5, G248-6, L12-6, L12-7, L12-8, L12-9, L12-10, L12-11 or L12-12 |
| G248-13, G248-14, G248-15, G248-16, L12-18, L12-19, L12- 20, L12-21, L12-22, L12-23 or L12-24 |
TERMINAL CHANNEL REFERENCE CHART
Audio amplifier signal (1)
| Channel | Probe | Terminal No. |
|---|---|---|
| 1 | + | G248-3, G248-4, G248-5 or G248-6 |
| G248-11 |
TERMINAL CHANNEL REFERENCE CHART
Sub woofer signal (1)
| Channel | Probe | Terminal No. |
|---|---|---|
| 1 | + | L11-2 or L11-3 |
| L11-6 or L11-7 |
TERMINAL CHANNEL REFERENCE CHART
Audio unit signal (1)
| Channel | Probe | Terminal No. |
|---|---|---|
| 1 | + | L12-1, L12-2, L12-3, L12-4, L12-13, L12-14, L12-15 or L12-16 |
| L11-4 |
TERMINAL CHANNEL REFERENCE CHART
Measurement condition
Scheme 21
- Audio: ON
Illumination signal
| Channel | Probe | Terminal No. |
|---|---|---|
| 1 | + | G248-12 |
| G248-11 |
TERMINAL CHANNEL REFERENCE CHART
Measurement condition
Scheme 22
- When clearance lights or headlights are lighting.
Rearview Image Signal
| Channel | Probe | Terminal No. |
|---|---|---|
| 1 | + | G232-3 |
| G232-5 |
TERMINAL CHANNEL REFERENCE CHART
Measurement condition
- Audio: ON
- Select lever position: "R"
Scheme 23
Radio Antenna Feeder Cable (Instrument Panel)
Disconnect radio antenna feeder cable (instrument panel) and check continuity as shown in figure. If check result is not as specified, replace radio antenna feeder cable (instrument panel).
Scheme 24
Scheme 25
Scheme 26
Radio Antenna Feeder Cable (Roof)
Disconnect radio antenna feeder cable (roof) and check continuity as shown in figure. If check result is not as specified, replace radio antenna feeder cable (roof).
Scheme 27
Scheme 28
Scheme 29
Scheme 30
- Remove driver air bag (inflator) module, see «DRIVER AIR BAG (INFLATOR) MODULE REMOVAL AND INSTALLATION»(ref-585585-S04579706692013111200000) .
- Disconnect "S61" connector from steering switch and check resistance between the following terminals under each condition in the table. If check result is not satisfactory, replace steering switch. NOTE: Set tester at diode range when measuring between terminals 3 and 9. Steering switch resistance TERMINAL RESISTANCE REFERENCE CHART Terminal position Resistance value Measurement condition 11 - 8 56 ± 0.6 ohms Talk switch: ON 241 ± 2.4 ohms Off hook switch: ON 751 ± 7.5 ohms On hook switch: ON 5151 ± 51.5 ohms Except above: ON 7 - 8 56 ± 1.7 ohms Mute switch: ON 131 ± 3.9 ohms Volume switch "+": ON 241 ± 7.2 ohms Volume switch "-": ON 421 ± 12.6 ohms Mode switch: ON 751 ± 22.5 ohms Seek switch " ^ ": ON 1571 ± 47.1 ohms Seek switch " v ": ON 5171 ± 155.1 ohms Except above 1 - 2 1500 ± 75 ohms TRIP switch: ON Approx. 0 ohms DISP switch: ON infinity ohms Except above
Scheme 31
- Disconnect negative (-) cable at battery.
- Remove trunk side trim, see «TRIM REMOVAL AND INSTALLATION»(ref-585603-S37582776972013111200000) .
- Disconnect audio amplifier connectors (1).
- Remove 3 audio amplifier bolts (2).
- Remove audio amplifier (3) from trunk.