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Home >> Scion >> 2016 >> iA Automatic Trans >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Lighting System (Interior) - Diagnostic Codes (B1D3686 - U300616) & Symptom Tests >> Lighting System >> DTC U0422-86: Invalid Data Received From Body Control Module signal invalid [07/2015 - ] >> Contents

DTC U0422-86: Invalid Data Received From Body Control Module signal invalid [07/2015 - ]: Contents

DTC No. Detection Item DTC Detection Condition Warning Indicate Memory Fail-safe Operation Note
U042286 Invalid Data Received From Body Control Module signal invalid Error signal received from main body ECU Not applicable DTC Stored DTC Stored
  • Drive cycle: Not applicable
  • Self test type: CMDTC self test
DESCRIPTION Error signal received from main body ECU
DETECTION CONDITION
  • Any of the following conditions is met with the ignition switched ON (engine assembly off or on):
    • The power source control (power management control ECU) received a headlight LO on request signal error signal from the main body ECU for 2 s or more.
    • The power source control (power management control ECU) received a headlight HI on request signal error signal from the main body ECU for 2 s or more.
    • The power source control (power management control ECU) detected a mismatch in the following signal combinations received from the main body ECU for 2 s or more.
      • Headlight variation information signal
      • Headlight LO on request signal
    • The power source control (power management control ECU) detected a mismatch in the following signal combinations received from the main body ECU for 2 s or more.
      • Headlight variation information signal
      • Headlight HI on request signal
FAIL-SAFE Exterior lighting system 
  • When the ignition is switched ON (engine off or on), the headlights LO, TNS (Parking Lights), and panel light turn on and other exterior light controls are stopped.
POSSIBLE CAUSE
  • DTCs are stored in the main body ECU.
  • Main body ECU connector or terminal malfunction
  • Power source control (power management control ECU) connector or terminal malfunction
  • Short to ground in wiring harness between main body ECU terminal E1-13 and power source control (power management control ECU) terminal E3-15
  • Short to power supply in wiring harness between main body ECU terminal E1-13 and power source control (power management control ECU) terminal E3-15
  • Main body ECU malfunction
  • Power source control (power management control ECU) malfunction
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