Toyota Tacoma (2015-2018) Service Manual: Vehicle Control History

Lost Communication With Image Processing Module "A" (U023A)

DESCRIPTION The millimeter wave radar sensor assembly communicates with the forward recognition camera via CAN communication. If there is a communication error with the forward recognition camera ...

Heater Circuit (C1AAE)

DESCRIPTION If the forward recognition camera detects a malfunction in the camera heater (forward recognition hood) circuit, it will output a malfunction signal to the millimeter wave radar senso ...

Other materials:

Check Bus 2 Lines for Short Circuit
DESCRIPTION There may be a short circuit between the CAN main bus lines and/or CAN branch lines when the resistance between terminals 18 (CA4H) and 17 (CA4L) of the central gateway ECU (network gateway ECU) is below 54 Ω. Detection Item Trouble Area Resi ...

A-TRAC Indicator Light does not Come ON
DESCRIPTION The A-TRAC does not operate even if the A-TRAC switch is pressed under the following conditions: The TRAC or VSC system is faulty. The temperature inside the hydraulic brake booster increases and the A-TRAC operation is suspended. WIRING DIAGRAM Refer to A-TRAC ...

Sleep Operation Failure of Occupant Classification ECU (B1796)
DESCRIPTION During sleep mode, the occupant detection ECU monitors the condition of each sensor while the ignition switch is off. In this mode, if the occupant detection ECU detects an internal malfunction, DTC B1796 is set. DTC No. DTC Detections Conditions Tr ...