DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0129-87: Lost Communication With Brake System Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0164-87: Lost Communication with HVAC Control Module Missing Message; DTC U0293-87: Lost Communication With Hybrid Powertrain Control Module Missing Message; DTC U1151-87: Lost Communication with Hybrid Powertrain Control Module (C-Bus) Missing Message [10/2023 - ]: Description
These DTCs are stored when a malfunction occurs in the CAN communication circuit.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U0100-87 | Lost Communication With ECM/PCM "A" Missing Message | When the stereo component equalizer assembly detects a CAN communication malfunction in the engine system for 1 second or more continuously 3 seconds after the power switch is turned on (IG)* | CAN communication system |
| U0129-87 | Lost Communication With Brake System Control Module Missing Message | When the stereo component equalizer assembly detects a CAN communication malfunction in the brake system for 1 second or more continuously 3 seconds after the power switch is turned on (IG)* | CAN communication system |
| U0140-87 | Lost Communication with Body Control Module Missing Message | When the stereo component equalizer assembly detects a CAN communication malfunction in the main body ECU for 3 seconds or more continuously 3 seconds after the power switch is turned on (IG)* | CAN communication system |
| U0164-87 | Lost Communication with HVAC Control Module Missing Message | When the stereo component equalizer assembly detects a CAN communication malfunction in the air conditioning system for 25 seconds or more continuously 3 seconds after the power switch is turned on (IG)* | CAN communication system |
| U0293-87 | Lost Communication With Hybrid Powertrain Control Module Missing Message | When the stereo component equalizer assembly detects a CAN communication malfunction in the HV system for 1 second or more continuously 3 seconds after the power switch is turned on (IG)* | CAN communication system |
| U1151-87 | Lost Communication with Hybrid Powertrain Control Module (C-Bus) Missing Message | When the stereo component equalizer assembly detects a CAN communication malfunction in the HV system (chassis bus) for 6 second or more continuously 3 seconds after the power switch is turned on (IG)* | CAN communication system |
HINT:
*: Malfunction monitoring is not performed during the following conditions to prevent erroneous detection.
- The auxiliary battery voltage is less than 9.5 V.
- Before 3 seconds have elapsed after auxiliary battery voltage has returned to normal.