RM36D0EC _51 Engine / Hybrid System _083048 HYBRID / BATTERY CONTROL _0709511 HYBRID CONTROL SYSTEM C

HYBRID / BATTERY CONTROL  HYBRID CONTROL SYSTEM  P310711  Lost Communication with Airbag System Control Module Circuit Short to Ground  


DESCRIPTION

The hybrid vehicle control ECU assembly detects a problem in the collision signal line from the airbag ECU assembly and alerts the driver.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate Note
P310711 Lost Communication with Airbag System Control Module Circuit Short to Ground Short to ground in the communication circuit:
Communication from the airbag sensor assembly stopped and Circuit Low has been detected for a certain period.
(1 trip detection logic)
·

Wire harness or connector

·

Airbag sensor assembly

·

Hybrid vehicle control ECU assembly


Does not come on Master Warning:
Comes on 		SAE Code:
P3107

Related Data List
DTC No. Data List
P310711 Airbag Status (Collision)

CONFIRMATION DRIVING PATTERN

HINT:

After repair has been completed, clear the DTCs and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>UTILITY


1.

Connect the GTS to the DLC3.

2.

Turn the power switch on (IG) and turn the GTS on.

3.

Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

4.

Turn the power switch off and wait for 2 minutes or more.

5.

Turn the power switch on (IG) and turn the GTS on.

6.

With power switch on (IG) and wait for 2 minutes or more.

7.

Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.

8.

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 driving pattern again.




WIRING DIAGRAM

C409277E11
1,2.115 1.458,2.313 0.458,0.198 10 false G70 0.979,2.292 2.604,2.531 1.625,0.24 10 false Airbag ECU Assembly 2.094,1.292 2.552,1.49 0.458,0.198 10 false E1 2.406,1.302 2.865,1.5 0.458,0.198 10 false 33 2.396,1.01 2.854,1.208 0.458,0.198 10 false 24 4.646,0.99 5.104,1.188 0.458,0.198 10 false 44 1.896,1.01 2.354,1.208 0.458,0.198 10 false GSW2 4.896,1.01 5.354,1.208 0.458,0.198 10 false ABFS 4.458,2.104 4.917,2.302 0.458,0.198 10 false A30 5.813,1.542 6.271,1.74 0.458,0.198 10 false E1 4.448,2.25 6.823,2.521 2.375,0.271 10 false Hybrid Vehicle Control ECU Assembly 5.594,0.531 6.052,0.729 0.458,0.198 10 false +B 6.083,1.448 6.542,1.646 0.458,0.198 10 false 15

PROCEDURE

1.CHECK DTC OUTPUT (SRS AIRBAG)
a.

Connect the GTS to the DLC3.


b.

Turn the power switch on (IG).


c.

Enter the following menus: Body Electrical / SRS Airbag / Trouble Codes.


d.

Check for DTCs.

Body Electrical > SRS Airbag > Trouble Codes
50001 188
Result:
Result Proceed to
Airbag system DTCs are not output. A
Airbag system DTCs are output. B



e.

Turn the power switch off.



A

2.CHECK AIRBAG ECU ASSEMBLY (CHECK WAVEFORM)

B

GO TO DTC CHART (AIRBAG SYSTEM)

for GTMC Made: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for GTMC Made)>DIAGNOSTIC TROUBLE CODE CHART

for SFTM Made: Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for SFTM Made)>DIAGNOSTIC TROUBLE CODE CHART


2.CHECK AIRBAG ECU ASSEMBLY (CHECK WAVEFORM)
a.

Connect an oscilloscope between the hybrid vehicle control ECU assembly terminals specified in the table below.


b.

Turn the power switch on (READY).


c.

Measure the waveform.

C518880C05
4.573,0.344 4.99,0.594 0.417,0.25 6.01,2.646 5.51,1.49 true 5.073,2.646 5.25,1.76 true 0.656,0.51 0.969,0.708 0.313,0.198 10 false *a 4.667,0.385 4.979,0.583 0.313,0.198 10 false A30 4.708,3.573 5.167,3.771 0.458,0.198 10 false GND 5.948,2.708 6.26,2.906 0.313,0.198 10 false E1 4.896,2.729 5.51,2.927 0.615,0.198 10 false ABFS
*a Component with harness connected
(Hybrid Vehicle Control ECU Assembly) 		- -


Item Contents
Terminal A30-44 (ABFS) - A30-15 (E1)
Equipment Setting 5 V/DIV., 150 ms./DIV.
Condition Power switch on (READY)


Result:
Result Proceed to
The waveform appears as shown in the illustration. A
The waveform differs from the one shown in the illustration. B


d.

Turn the power switch off.



A

3.CLEAR DTC

B

6.CHECK AIRBAG ECU ASSEMBLY
4.CHECK DTC OUTPUT (HYBRID CONTROL)
a.

Connect the GTS to the DLC3.


b.

Turn the power switch on (IG).


c.

Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.


d.

Check for DTCs.

Powertrain > Hybrid Control > Trouble Codes
50001 397
Result:
Result Proceed to
P310711 is not output. A
P310711 is output. B



e.

Turn the power switch off.



A

5.CHECK FOR INTERMITTENT PROBLEMS

B

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID VEHICLE CONTROL ECU>REMOVAL


5.CHECK FOR INTERMITTENT PROBLEMS

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID CONTROL SYSTEM>CHECK FOR INTERMITTENT PROBLEMS

Result:
Proceed to
OK
NG



OK

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID VEHICLE CONTROL ECU>REMOVAL


NG

REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

6.CHECK AIRBAG ECU ASSEMBLY
a.

Disconnect the G70 airbag ECU assembly connector.


b.
C371896C18
1.333,0.135 1.771,0.375 0.438,0.24 0.99,0.344 1.458,1.073 true 1.063,1.792 1.458,1.219 true 0.104,0.083 0.417,0.24 0.313,0.156 10 false *a 1.417,0.177 1.771,0.333 0.354,0.156 10 false G70 0.531,0.115 0.99,0.271 0.458,0.156 10 false GSW2 0.885,1.75 1.198,1.906 0.313,0.156 10 false E1
*a Component without harness connected
(Airbag ECU Assembly)


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
G70-24 (GSW2) - G70-33 (E1) Power switch off 10 kΩ or higher



c.

Reconnect the G70 airbag ECU assembly connector.


Result:
Proceed to
OK
NG



OK

7.CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - AIRBAG ECU ASSEMBLY)

NG

REPLACE AIRBAG ECU ASSEMBLY

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>CENTER AIRBAG SENSOR ASSEMBLY>REMOVAL


7.CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - AIRBAG ECU ASSEMBLY)
a.

Disconnect the A30 hybrid vehicle control ECU assembly connector.


b.

Disconnect the G70 airbag ECU assembly connector.


c.
C408031C12
1.458,0.146 1.875,0.396 0.417,0.25 1.542,2.229 1.948,2.469 0.406,0.24 0.979,1.885 1.208,1.51 true 1.875,3.479 2,4.24 true 1.531,0.208 2.031,0.438 0.5,0.229 10 false A30 0.75,1.906 1.25,2.135 0.5,0.229 10 false ABFS 0.375,0.26 0.875,0.49 0.5,0.229 10 false *a 1.604,2.281 2.104,2.51 0.5,0.229 10 false G70 1.844,4.281 2.344,4.51 0.5,0.229 10 false GSW2 0.427,2.156 0.927,2.385 0.5,0.229 10 false *b
*a Front view of wire harness connector
(to Hybrid Vehicle Control ECU Assembly)
*b Front view of wire harness connector
(to Airbag ECU Assembly)


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
A30-44 (ABFS) or G70-24 (GSW2) - Body ground and other terminals Power switch off 10 kΩ or higher



d.

Reconnect the G70 airbag ECU assembly connector.


e.

Reconnect the A30 hybrid vehicle control ECU assembly connector.


Result:
Proceed to
OK
NG



OK

REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY

Click hereEngine / Hybrid System>HYBRID / BATTERY CONTROL>HYBRID VEHICLE CONTROL ECU>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR