OBDII Code List

C1248 TOYOTA - Open Circuit in Rear Differential Lock

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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Possible causes

  • Transfer Indicator Switch (Rear Differential Lock)
  • Rear Differential Lock Circuit
  • Brake Actuator (Skid Control ECU)

Possible symptoms

  • Anti-Lock Brake System (ABS) Warning Light ON
  • Engine Light ON (or Service Engine Soon Warning Light)

C1248 Toyota Description

The 4WD control ECU stimulates the actuator to lock the rear differential in accordance with the rear differential lock switch. The skid control ECU monitors the transfer indicator switch (rear differential lock) and if the rear differential is locked, at which time the rear differential lock indicator light is illuminated, prohibits ABS, TRAC and VSC controls. At the same time, the skid control ECU illuminates the ABS warning light, VSC OFF indicator light and SLIP indicator light
OBDII Code C1248 Toyota - Open Circuit in Rear Differential Lock -

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