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Home >> Toyota >> 2017 >> Corolla SE, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Control System (2ZR-FAE) - Diagnostic Codes (6 Of 8) (Model Code: ZRE172)) >> SFI System >> DTC U011B: Lost Communication with Rocker Arm Control Module "A" [08/2013 - 08/2016] >> Description
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DTC U011B: Lost Communication with Rocker Arm Control Module "A" [08/2013 - 08/2016]: Description

WARNING: This page is about a different variant/trim than selected.

The ECM and continuously variable valve lift controller assembly communicate via the CAN communication system.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
U011B Lost Communication with Rocker Arm Control Module "A" CAN communication stops (1 trip detection logic).
  • CAN communication circuit
  • Continuously variable valve lift controller assembly
  • ECM
Comes on DTC stored