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HOMESERVICE MANUALSTOYOTA20064RUNNER SR5, 4.7 T, AWDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTINFOTAINMENTBACK MONITOR SYSTEM - DIAGNOSTICSPRE-CHECK
2006 Toyota 4Runner SR5, 4.7 T, AWD
Back Monitor System - Diagnostics: Pre-Check
2006 Toyota 4Runner SR5, 4.7 T, AWDSECTION Pre-Check
- INSPECT TELEVISION CAMERA
- Standard signal check
- Using the tester, measure the voltage and the resistance according to the value(s) in TERMINAL REFERENCE TABLE
.
HINT:
Leave the connector being connected.
- Using the oscilloscope, check waveforms between terminals.
HINT:
- Leave the connector being connected.
- The waveform shown is an example.
Noise waveform and chattering waveform are omitted.
Standard
Connector T11
TERMINAL REFERENCE TABLETerminal No. Terminal symbol Input/Output Tester connection (Wiring color) Item Condition Specified condition Problem symptom when open circuit is detected. Problem symptom when short circuit is detected. 1 CB+ Input T11-1 -T11-2 (R W) Voltage IG SW ON, Shift lever in R range IG SW ON, Shift lever in R range Approx. 6 V Back monitor does not display images. Fuse blows out 2 CGND Output T11-2 - Body ground (W - Body ground) Continuity Always Continuity Back monitor does not display images. 3 CV- Output T11-3 - Body ground (BR - Body ground) Continuity IG SW ON, Shift lever in R range Continuity Back monitor does not display images. 4 CV+ Output T11-4 - T11-3 (B - BR) Waveform IG SW ON, Shift lever in R range Approx. 0.65 V (Waveform 1) Back monitor does not display images. < Reference >
- Using the tester, measure the voltage and the resistance according to the value(s) in TERMINAL REFERENCE TABLE
.
- Oscilloscope waveform
- Standard signal check
- INSPECT RADIO AND NAVIGATION ASSEMBLY (BACK MONITOR CONTROLLER)
- Standard signal check
- Using the tester, measure the voltage and the resistance according to the value(s) in TERMINAL REFERENCE TABLE
.
HINT:
Leave the connectors being connected.
- Check waveforms between terminals.
HINT:
- Leave the connectors being connected.
- The waveform shown is an example. Noise waveform and chattering waveform are omitted.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard
Connector R12
TERMINAL REFERENCE TABLETerminal No. Terminal symbol Input/Output Tester connection Item Condition Specified condition Problem symptom when open circuit is detected. Problem symptom when short circuit is detected. 1 B Input R12-1 - R12-20 (L Y BR) Voltage Always 10 to 14 V Radio and navigation assembly does not operate. Fuse blows out. 11 ACC Input R12-11 - R12-20 (GR BR) Voltage IG SW ACC 10 to 14 V Radio and navigation assembly does not operate. Fuse blows out. 20 GND Output R12-20 - Body ground (BR - Body ground) Continuity Always Continuity Back monitor does not display images. Connector R9
TERMINAL REFERENCE TABLETerminal No. Terminal symbol Input/Output Tester connection (Wiring color) Item Condition Specified condition Problem symptom when open circuit is detected. Problem symptom when short circuit is detected. 5 REV Input R9-5-R12-20 (R Y BR) Voltage Shift lever in except R range --> R range Less than 1 V --> 10 to 14 V Back monitor does not display images. Fuse blows out. Connector R26
TERMINAL REFERENCE TABLETerminal No. Terminal symbol Input/Output Tester connection (Wiring color) Item Condition specified condition Problem symptom when open circuit is detected. Problem symptom when short circuit is detected. 22 V+ Input R26-22 - R26-23 (B - Shielded) Waveform IG SW ON, shift lever in R range Approx. 0.65 V (Waveform 1) Back monitor does not display images. 24 CA+ Output R26-24 - R26-21 (R-W) Voltage IG SW ON, shift lever in R range 6 V Back monitor does not display images. Fuse blows out. 23 V- Input R26-23 - R26-21 (Shielded - W) Continuity IG SW ON, shift lever in R range Continuity Back monitor does not display images. 21 CGND - R26-21 - Body ground (W - Body ground) Continuity Always Continuity Back monitor does not display images. < Reference >
- Using the tester, measure the voltage and the resistance according to the value(s) in TERMINAL REFERENCE TABLE
.
- Oscilloscope waveform
- Standard signal check
- INSPECT BACK MONITOR CAMERA WIRE
- Continuity check
- Using the tester, measure the resistance according to the value(s) in TESTER CONNECTION SPECIFIED CONDITION TABLE
.
Standard
TESTER CONNECTION SPECIFIED CONDITION TABLETester Connection Specified Condition R26-21 - T11-2 Continuity R26-22 - T11-4 Continuity R26-23 - T11-3 Continuity R26-24 - T11-1 Continuity R26-22 - Body ground No Continuity R26-24 - Body ground No Continuity
- Using the tester, measure the resistance according to the value(s) in TESTER CONNECTION SPECIFIED CONDITION TABLE
.
- Continuity check
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.