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Home >> Toyota >> 2021 >> Highlander LE, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 58 (Automatic Transmission System (UA81E / UA81F) - Diagnostic Codes (3 Of 3) & Circuit Tests) >> Automatic Transaxle System >> DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message [10/2022 - ] >> Monitor Strategy

Monitor Strategy

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Related DTCs U0100: Verify communication
Required sensors/components (Main) ECM
Required sensors/components (Related) -
Frequency of Operation Continuous
Duration 1.25 sec.
MIL Operation Immediately
Sequence of Operation None
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