These DTCs are stored when there is a CAN communication malfunction between the certification ECU (smart key ECU assembly), ECM, main body ECU (multiplex network body ECU), shift lock control unit assembly, combination meter assembly, slide door motor unit*1, engine stop and start ECU*2, slide door motor unit LH (slide door ECU LH)*3 or slide door motor unit LH (slide door ECU LH)*3.
Data from the option connector (bus buffer ECU) cannot be received.
*1: w/ Power Slide Door System
*2: w/ Stop and Start System
*3: w/ Power Slide Door System
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U0100 | Lost Communication with ECM / PCM | CAN communication malfunction between certification ECU (smart key ECU assembly) and ECM (1-trip detection logic*) | ECM | DTC Output Confirmation Operation:
Turn the engine switch on (IG) and wait at least 10 seconds. |
| U0140 | Lost Communication with Body Control Module | CAN communication malfunction between certification ECU (smart key ECU assembly) and main body ECU (multiplex network body ECU) (1-trip detection logic*) | Main body ECU (multiplex network body ECU) | DTC Output Confirmation Operation:
Any time |
| U0142 | Lost Communication with Main Body ECU | CAN communication malfunction between certification ECU (smart key ECU assembly) and main body ECU (multiplex network body ECU) (1-trip detection logic*) | Main body ECU (multiplex network body ECU) | DTC Output Confirmation Operation:
Any time |
| U0155 | Lost Communication with Combination Meter | CAN communication malfunction between certification ECU (smart key ECU assembly) and combination meter assembly (1-trip detection logic*) | Combination meter assembly | DTC Output Confirmation Operation:
Turn the engine switch on (IG) and wait at least 10 seconds. |
| U0201 | Lost Communication with "Door Control Module C" | CAN communication malfunction between the certification ECU (smart key ECU assembly) and slide door motor unit RH (slide door ECU RH) (1-trip detection logic*). | Slide door motor unit RH (slide door ECU RH) | DTC Output Confirmation Operation:
Any time |
| U0202 | Lost Communication with "Door Control Module D" | CAN communication malfunction between the certification ECU (smart key ECU assembly) and slide door motor unit LH (slide door ECU LH) (1-trip detection logic*). | Slide door motor unit LH (slide door ECU LH) | DTC Output Confirmation Operation:
Any time |
| U1103 | Lost Communication with Stop and Start Control Module | CAN communication malfunction between the certification ECU (smart key ECU assembly) and engine stop and start ECU (1-trip detection logic*). | Engine stop and start ECU | DTC Output Confirmation Operation:
Turn the engine switch on (IG) and wait 10 seconds or more. |
| U1117 | Lost Communication with Accessory Gateway | Data from the option connector (bus buffer ECU) cannot be received | ·
Connector and branch wire of sub bus 2 of option connector (bus buffer ECU) ·
Internal malfunction of option connector (bus buffer ECU) |
DTC Output Confirmation Operation:
Turn the engine switch on (IG) and wait at least 10 seconds. |
*: Only detected while a malfunction is present.
| DTC Code | Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|---|
| U0100 | There is no effect on vehicle behavior. | If the following conditions are met, it is determined that the malfunction is not in the direct line (NE) but in CAN communication.
·
When the engine switch is pressed, the system controls the engine based on the engine speed signal via direct line, causing the engine to stop cranking. ·
When the engine switch is pressed and held, the system controls the engine based on the engine speed signal via direct line, causing the engine to stop cranking. If the following conditions are met, it is determined that there is a malfunction in both CAN communication and the direct line (NE). ·
When the engine switch is pressed, the engine stops cranking after 6 seconds. ·
When the engine switch is pressed and held, the engine remains cranking for up to 30 seconds. |
| U0140 | The warning (meter buzzer) does not sound and no warning messages are displayed on the multi-information display. | - |
| U0142 | ·
Doors cannot be locked or unlocked. ·
The warning (wireless buzzer) does not sound. |
- |
| U0155 | ·
The warning (meter buzzer) does not sound and the meter does not indicate a warning. ·
There is no effect on vehicle behavior. |
- |
| U0201 | Power slide door reservation lock function does not operate. | - |
| U0202 | Power slide door reservation lock function does not operate. | - |
| U0230 | Power back door does not operate. | - |
| U1103 | ·
The engine stall misjudgment is done by the idling stop by stop and start system. ·
Immobiliser set is done by the door operation in the idling stop by stop and start system |
- |
| U1117 | The engine cannot be started using the wireless remote control function. | - |
| DTC No. | Data List and Active Test |
|---|---|
| U0100
U0140 U0142 U0155 U0201 U0202 U0230 U1103 U1117 |
- |
When using the GTS with the engine switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start. While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".
When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
Refer to the CAN Communication System.
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