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Home >> Toyota >> 2012 >> Highlander Limited, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 115 (Hybrid Vehicle Control System (Diagnostic Codes (P0ADB-227 - U0424-537) & Circuit Tests)) (Hybrid)) >> Hybrid Control System >> DTC P310A-711: Communication Error from MGR to MG2 >> Monitor Description

Monitor Description

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The MG ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In one of these diagnostics, the MG ECU checks the result of the rear motor CPU self-test. If the MG ECU detects a "Fail" from the rear motor CPU self-test, it will conclude that there is an internal malfunction in the rear motor CPU. The hybrid vehicle control ECU will illuminate the MIL and set a DTC.