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Home >> Toyota >> 2017 >> Highlander LE Plus, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission (UA80F) - Diagnostic Codes (P0795-12 - U1103-87) (Except Hybrid) >> Automatic Transaxle System >> DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message [11/2016 - ] >> Description

DTC U1103-87: Lost Communication with Stop and Start Control Module Missing Message [11/2016 - ]: Description

The ECM and engine stop and start ECU send and receive signals via CAN communication.

If a communication error occurs between the ECM and engine stop and start ECU, the ECM stores this DTC.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
U110387 Lost Communication with Stop and Start Control Module Missing Message 1. Diagnosis Condition 2. Malfunction Status 3. Malfunction Time 4. Other
  1. The ignition switch is ON and battery voltage is 10 V or more.
  2. No communication between ECM and engine stop and start ECU
  3. 1.16 seconds or more
  4. 1-trip detection logic
  • ECM
  • Engine stop and start ECU
  • CAN communication system
 Does not come on DTC stored SAE Code:
U1103
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