Toyota Corolla Cross: Lost Communication with ECM/PCM "A" Missing Message (U010087,...,U117B87)
DESCRIPTION
The hybrid vehicle control ECU transmits and receives signals via CAN communication to and from the ECM, shift control ECU, MG ECU, skid control ECU, main body ECU, airbag sensor assembly, steering angle sensor, certification ECU (smart key ECU assembly) and air conditioning amplifier assembly.
|
DTC No. | Detection Item |
DTC Detection Condition |
Trouble Area | MIL |
Warning Indicate | Note |
|---|---|---|---|---|---|---|
|
U010087 | Lost Communication with ECM/PCM "A" Missing Message |
A CAN communication error between the ECM and hybrid vehicle control ECU (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system |
Comes on | Master Warning: Comes on | SAE Code: U0100 |
| U011087 |
Lost Communication with Drive Motor Control Module "A" Missing Message |
A CAN communication error between the MG ECU and hybrid vehicle control ECU (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system |
Comes on | Master Warning: Comes on | SAE Code: U0110 |
| U012687 |
Lost Communication with Steering Angle Sensor Module Missing Message |
A CAN communication error between the steering sensor and hybrid vehicle control ECU (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system |
Does not come on | Master Warning: Does not come on | SAE Code: U0126 |
| U012987 |
Lost Communication with Brake System Control Module Missing Message |
A CAN communication error (V BUS) between the skid control ECU and hybrid vehicle control ECU (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system |
Comes on | Master Warning: Comes on | SAE Code: U0129 |
| U014087 |
Lost Communication with Body Control Module Missing Message |
A CAN communication error between the main body ECU and hybrid vehicle control ECU (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system |
Does not come on | Master Warning: Comes on | SAE Code: U0140 |
| U015187 |
Lost Communication with Restraints Control Module Missing Message |
A CAN communication error between the airbag sensor assembly and hybrid vehicle control ECU (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system |
Does not come on | Master Warning: Comes on | SAE Code: U0151 |
| U015500 |
Lost Communication with Instrument Panel Cluster (IPC) Control Module |
A CAN communication error between the combination meter assembly and hybrid vehicle control ECU (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system |
Does not come on | Master Warning: Does not come on | SAE Code: U0155 |
| U016487 |
Lost Communication with HVAC Control Module Missing Message |
A CAN communication error between the air conditioning amplifier assembly and hybrid vehicle control ECU (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system |
Does not come on | Master Warning: Does not come on | SAE Code: U0164 |
| U110787 |
Lost Communication with Power Management Module Missing Message |
A CAN communication error between the certification ECU (smart key ECU assembly) and hybrid vehicle control ECU (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system |
Does not come on | Master Warning: Comes on | SAE Code: U1107 |
| U111A87 |
Lost Communication with ECM/PCM "A" (ch2) Missing Message |
A CAN communication error between the ECM and hybrid vehicle control ECU (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system |
Comes on | Master Warning: Comes on | SAE Code: U111A |
| U115487 |
Lost Communication with Drive Motor Control Module "A" (ch2) Missing Message |
A CAN communication error between the MG ECU and hybrid vehicle control ECU (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system |
Comes on | Master Warning: Comes on | SAE Code: U1154 |
| U117087 |
Lost Communication with Brake System Control Module (Secondary CAN Line) Missing Message |
A CAN communication error between the skid control ECU and hybrid vehicle control ECU (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system |
Comes on | Master Warning: Comes on | SAE Code: U1170 |
| U117B87 |
Lost Communication with Hybrid/EV Battery Energy Control Module "A" (ch2) Missing Message |
A CAN communication error between the battery ECU assembly and hybrid vehicle control ECU (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system |
Comes on | Master Warning: Comes on | SAE Code: U117B |
MONITOR DESCRIPTION
If the hybrid vehicle control ECU detects a problem with CAN communication with the ECU, it will illuminate the MIL and store a DTC.
MONITOR STRATEGY
|
Related DTCs | U0100 (INF U010087): Lost communication with ECM/PCM verify communication U0110 (INF U011087): Lost communication with drive motor "A" control module verify communication U0129 (INF U012987): Lost communication with brake system control module verify communication U111A (INF U111A87): Lost communication with ECM/PCM verify communication U1154 (INF U115487): Lost communication with MG ECU verify communication U1170 (INF U117087): Lost communication with skid control ECU verify communication U117B (INF U117B87): Lost communication with brake system control module verify communication |
|
Required sensors/components |
Main: Hybrid vehicle control ECU Sub: CAN bus line |
|
Frequency of operation |
Continuous |
|
Duration | TMC's intellectual property |
|
MIL operation | Immediately |
|
Sequence of operation |
None |
TYPICAL ENABLING CONDITIONS
|
The monitor will run whenever the following DTCs are not stored |
TMC's intellectual property |
|
Other conditions belong to TMC's intellectual property |
- |
TYPICAL MALFUNCTION THRESHOLDS
|
TMC's intellectual property |
- |
COMPONENT OPERATING RANGE
|
Hybrid vehicle control ECU |
DTC U0100 (INF U010087) is not detected DTC U0110 (INF U011087) is not detected DTC U0129 (INF U012987) is not detected DTC U111A (INF U111A87) is not detected DTC U1154 (INF U115487) is not detected DTC U1170 (INF U117087) is not detected DTC U117B (INF U117B87) is not detected |
CONFIRMATION DRIVING PATTERN
HINT:
- After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
Click here
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- When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
- Connect the GTS to the DLC3.
- Turn the ignition switch to ON and turn the GTS on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off and wait for 2 minutes or more.
- Turn the ignition switch to ON and turn the GTS on.
- Turn the ignition switch to ON (READY) and wait for 2 minutes or more. [*1]
HINT:
[*1]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
- Check the DTC judgment result.
HINT:
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows INCOMPLETE, perform the normal judgment procedure again.
PROCEDURE
|
1. | CHECK DTC OUTPUT (HEALTH CHECK) |
(a) According to the display on the GTS, select "Health Check".
(b) Check for DTCs.
| Result |
Proceed to |
|---|---|
| Hybrid vehicle control ECU outputs P253012. |
A |
| Hybrid vehicle control ECU does not output P253012. |
B |
(c) Turn the ignition switch off.
| A | .gif) | GO TO DTC CHART (P253012) |
| B | | GO TO CAN COMMUNICATION SYSTEM |
READ NEXT:
Lost Communication with Hybrid/EV Battery Energy Control Module "A" Missing Message (U011187)
DESCRIPTION The hybrid vehicle control ECU transmits and receives signals via CAN communication to and from the battery ECU assembly.
DTC No. Detection Item
DTC Detection Condition
Lost Communication with DC/DC Converter Control Module "C" Missing Message (U01BD87)
DESCRIPTION The hybrid vehicle control ECU transmits and receives signals via CAN communication to and from the DC/DC converter assembly.
DTC No. Detection Item
DTC Detection Condition
HVAC Control Module to Hybrid Powertrain Control Module Invalid Serial Data Received (U042481)
DESCRIPTION If the hybrid vehicle control ECU receives an invalid compressor control request from the air conditioning amplifier assembly via CAN communication, it will store this DTC.
DTC No.
SEE MORE:
Removal
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 BRAKE MASTER CYLINDER SUB-ASSEMBLY
47201 -
- -
2 VACUUM SENSOR ASSEMBLY
89420H -
- -
3 VACUUM SENSOR GROMMET
- -
-
Removal
REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL)
Procedure Part Name Code
1 HEADLIGHT ASSEMBLY
- -
- -
2 HEADLIGHT ECU SUB-ASSEMBLY
-
- -
*1 HEADLIGHT UNIT ASSEMBLY
- -
● Non-reusable part
