DESCRIPTION
The motor generator control ECU communicates with the hybrid vehicle control ECU, ECM and skid control ECU assembly via CAN communication.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
---|---|---|---|---|---|
U010087 | Lost Communication With ECM/PCM "A" Missing Message | A CAN communication error between the ECM and motor generator control ECU (CAN communication system malfunction) occurs (1 trip detection logic) | CAN communication system | Comes on | Master Warning Light: Comes on |
U029387 | Lost Communication With Hybrid Powertrain Control Module Missing Message | A CAN communication error between the hybrid vehicle control ECU and motor generator control ECU (CAN communication system malfunction) occurs (1 trip detection logic) | CAN communication system | Comes on | Master Warning Light: Comes on |
U117087 | Lost Communication With Brake System Control Module(ch2) Missing Message | A CAN communication error between the skid control ECU assembly and motor generator control ECU (CAN communication system malfunction) occurs (1 trip detection logic) | CAN communication system | Comes on | Master Warning Light: Comes on |
MONITOR DESCRIPTION
If the motor generator control ECU detect problem with CAN communication with each ECU, it will illuminate the MIL and set a DTC.
MONITOR STRATEGY
Related DTCs | U0100 (INF U010087): Lost Communication With ECM/PCM U0293 (INF U029387): Lost Communication With Hybrid Control Module U1170 (INF U117087): Lost Communication With Brake System Control Module |
Required sensors/components | Motor generator control ECU |
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
Motor generator control ECU | DTC U0100 (INF U010087) is not detected DTC U0293 (INF U029387) is not detected DTC U1170 (INF U117087) is not detected |
CONFIRMATION DRIVING PATTERN
HINT:
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HINT:
[*1]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
HINT:
PROCEDURE
1. | CHECK DTC OUTPUT (MOTOR GENERATOR CONTROL) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Motor Generator / Trouble Codes.
(d) Check for DTCs.
Powertrain > Motor Generator > Trouble Codes Result | Proceed to |
---|---|
None of the following DTCs are output. | A |
Any of the following DTCs are also output. | B |
DTC No. | Relevant DTC |
---|---|
P312487 | Lost Communication between Drive Motor "A" and HV ECU Missing Message |
HINT:
U010087, U029387 or U117087 may be stored due to a malfunction which also causes the DTCs in the preceding table to be stored. In this case, first troubleshoot the output DTCs in the preceding table. Then, perform a test to attempt to reproduce the problems, and check that no DTCs are output.
(e) Turn the power switch off.
A | GO TO CAN COMMUNICATION SYSTEM |
B | GO TO DTC CHART (MOTOR GENERATOR CONTROL SYSTEM) |