Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSTOYOTA20054RUNNER SR5, 4.7 T, AWDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTINFOTAINMENTBACK MONITOR SYSTEM - DIAGNOSTICSPRE-CHECK

2005 Toyota 4Runner SR5, 4.7 T, AWD

Back Monitor System - Diagnostics: Pre-Check

2005 Toyota 4Runner SR5, 4.7 T, AWDSECTION Pre-Check

INSPECT TELEVISION CAMERA ASSY:

Standard signal check
1. Using the tester, measure the voltage and the continuity between terminals.
  HINT:
  
  Leave the connector being connected.
2. Using the oscilloscope, check wave forms between terminals.
  HINT:
  - Leave the connector being connected.
  - The waveform shown is merely an example.
  Noise waveform and chattering waveform are omitted.
  
  Standard:
  
  Fig 1: Identifying Connector Terminal T11
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Connector T11
  
  Fig 2: Problem Symptom Chart (Connector T11)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
< Reference >

Oscilloscope waveform

Waveform 1

Standard:

TERMINAL REFERENCE

Item	Content
Terminal	CV+ <=> CV-
Tool setting	0.2 V/DIV, 0.2 mus/DIV
Condition	IG SW ON, shift lever R range

Fig 3: Oscilloscope Waveform Graph

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT RADIO RECEIVER ASSY (BACK MONITOR CONTROLLER)
1. Standard signal check
  1. Using the tester, measure the voltage and the continuity between terminals.
    HINT:
    
    Leave the connectors being connected.
  2. Check waveforms between terminals.
    HINT:
    - Leave the connectors being connected.
    - The waveform shown is merely an example. Noise waveform and chattering waveform are omitted.
    Fig 4: Checking Waveforms Between Terminals
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  Standard:
  
  Fig 5: Problem Symptom Chart (Connector R12)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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.