Toyota Camry (XV70): Lost Communication With ECM/PCM "A" Missing Message (U010087,U012587,U012687,U012987,U015587,U110687)
DESCRIPTION
The forward recognition camera communicates with each sensor and ECU via CAN communication.
If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
DTC Output from |
|---|---|---|---|---|
|
U010087 | Lost Communication With ECM/PCM "A" Missing Message |
When the dynamic radar cruise control system is operating, a communication malfunction between the ECM and forward recognition camera is detected for 5 seconds or more. |
CAN communication system |
Radar Cruise2 |
|
U012587 | Lost Communication with Multi-axis Acceleration Sensor Module Missing Message |
When the vehicle speed is 1 km/h (1 mph) or more, a communication error between the forward recognition camera and airbag sensor assembly continues for 5 seconds or more. |
CAN communication system |
Radar Cruise2 |
|
U012687 | Lost Communication with Steering Angle Sensor Module Missing Message |
When the ignition switch is ON for 3 seconds or more, a communication error between the forward recognition camera and steering sensor continues for 5 seconds or more. |
CAN communication system |
Radar Cruise2 |
|
U012987 | Lost Communication with Brake System Control Module Missing Message |
When the ignition switch is ON for 3 seconds or more, a communication error between the forward recognition camera and skid control ECU (brake actuator assembly) continues for 5 seconds or more. |
CAN communication system |
Radar Cruise2 |
|
U015587 | Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message |
When the ignition switch is ON for 3 seconds or more, a communication error between the forward recognition camera and combination meter assembly continues for 5 seconds or more. |
CAN communication system |
Radar Cruise2 |
|
U110687 | Lost Communication with Electric Parking Brake Module Missing Message |
When the ignition switch is ON for 3 seconds or more, a communication error between the forward recognition camera and skid control ECU (brake actuator assembly) continues for 5 seconds or more. |
CAN communication system |
Radar Cruise2 |
PROCEDURE
| 1. |
CHECK FOR DTCs (Radar Cruise2) |
(a) Clear the DTCs.
Powertrain > Radar Cruise2 > Clear DTCs(b) Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs.
Powertrain > Radar Cruise2 > Trouble Codes|
Result | Proceed to |
|---|---|
|
CAN communication system DTC is not output |
A |
| CAN communication system DTC is output |
B |
| A |
.gif) | USE SIMULATION METHOD TO CHECK
|
.gif)
| B |
| GO TO CAN COMMUNICATION SYSTEM |
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DESCRIPTION The forward recognition camera communicates with the millimeter wave radar sensor assembly via CAN communication. If a communication malfunction between the forward recognition camera and
Internal Control Module Software Incompatibility Not Programmed (U030051,U030057)
DESCRIPTION
If the forward recognition camera cannot verify the vehicle information sent from the ECM, the forward recognition camera stores DTC U030051.
If the vehicle information stored in
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Removal
REMOVAL CAUTION / NOTICE / HINT
The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during fuel injector assembly removal/installation are shown below. Necessary Procedures After Parts Removed/
Reassembly
REASSEMBLY PROCEDURE 1. TEMPORARILY TIGHTEN REAR DISC BRAKE BLEEDER PLUG
(a) Temporarily install the rear disc brake bleeder plug to the rear disc brake cylinder.
HINT: Fully tighten the rear disc brake bleeder plug after bleeding the system.
2. INSTALL REAR DISC BRAKE BLEEDER PLUG CAP (a) Ins
