The power steering ECU assembly receives signals from the steering sensor, skid control ECU (brake actuator assembly), forward recognition camera*1, hybrid vehicle control ECU*2 and ECM*3 via CAN communication.
*1: w/ Toyota Safety Sense
*2: for HEV Model
*3: for Gasoline Model
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Return-to-normal Condition | Note |
|---|---|---|---|---|---|---|
| U010087 | Lost Communication with ECM/PCM "A" Missing Message | Lost communication with ECM | ·
CAN communication system ·
ECM |
EPS warning light: Does not come on | After normal confirmation | for Gasoline Model |
| U012987 | Lost Communication with Brake System Control Module Missing Message | Lost communication with skid control ECU (brake booster with master cylinder assembly) | ·
CAN communication system ·
Skid control ECU (Brake actuator assembly) |
EPS warning light: Does not come on | After normal confirmation | - |
| U023A87 | Lost Communication with Image Processing Module "A" Missing Message | Lost communication with forward recognition camera | ·
CAN communication system ·
Forward recognition camera |
EPS warning light: Does not come on | After normal confirmation | w/ Toyota Safety Sense |
| U029387 | Lost Communication with Hybrid/EV Powertrain Control Module Missing Message | Lost communication with hybrid vehicle control ECU | ·
CAN communication system ·
Hybrid vehicle control ECU |
EPS warning light: Does not come on | After normal confirmation | for HEV Model |
Go to CAN communication system.
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