MONITOR DESCRIPTION The ECM continuously monitors its main CPU and monitor IC. This self-check ensures that the ECM is functioning properly. If outputs from main CPU and monitor IC are different and deviate from the standard, the ECM will illuminate the MIL and store this DTC.
MONITOR STRATEGY
TYPICAL ENABLING CONDITIONS
TYPICAL MALFUNCTION THRESHOLDS
CONFIRMATION DRIVING PATTERN HINT:
CAUTION / NOTICE / HINT NOTICE:
HINT: Read Freeze Frame Data using the Techstream. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred. PROCEDURE
(a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Clear the DTCs. Powertrain > Engine > Clear DTCs(e) Turn the power switch off.
(a) Disconnect the cable from the negative (-) auxiliary battery terminal and wait for 1 minute. (b) Connect the cable to the negative (-) auxiliary battery terminal. (c) Connect the Techstream to the DLC3. (d) Turn the power switch on (IG). (e) Turn the Techstream on. (f) Wait 1 second or more. (g) Enter the following menus: Powertrain / Engine / Trouble Codes. (h) Read the DTCs. Powertrain > Engine > Trouble Codes
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Blind Spot Monitor System(for Gasoline Model): Open in Outer Mirror Indicator(Master) (C1AB4)
DESCRIPTION This DTC is stored when the blind spot monitor sensor RH detects an open in the outer rear view mirror indicator RH. DTC No. Detection Item DTC Detection Condition Trouble Area C1AB4 Open in Outer Mirror Indicator(Master) Both of the following conditions are met: The blind spot monitor s ...