42B-B1130 Power output status unmatched

DTC B1130: Ignition power supply

caution

If DTC B1130 is stored, always diagnose the CAN bus lines.
Before replacing ECU, ensure that the communication circuit is normal.

DTC SET CONDITION

If the output power supply status is different from the engine switch status information received from ETACS-ECU via CAN, OSS-ECU stores DTC B1130. At the same time, OSS-ECU displays the power supply system error warning to the combination meter, and flashes the indicator of engine switch in orange.

TECHNICAL DESCRIPTION (COMMENT)

Check Conditions

The terminal voltage of +B1 and +B2 is between 10 and 16 V.

Judgment Criterion

Any of the following conditions is met, and 2 seconds or more have elapsed.

The engine switch status information received from ETACS-ECU is other than OFF when the power supply mode of OSS is OFF.
The engine switch status information received from ETACS-ECU is other than ACC when the power supply mode of OSS is ACC.
The engine switch status information received from ETACS-ECU is other than ON when the power supply mode of OSS is ON.
IG2M is Hi with the OSS power supply mode OFF
IG2M is Hi with the OSS power supply mode ACC
IG2M is Lo with the OSS power supply mode ON

TROUBLESHOOTING HINTS

Malfunction of the CAN bus line
Damaged wiring harness or connector (short to ground, short to power supply, or open circuit in ACC line, IG1 line, IG2 line or IGM2 line)
Malfunction of ACC relay
Malfunction of IG1 relay
Malfunction of IG2 Relay
Malfunction of OSS-ECU
Malfunction of ETACS-ECU
Commercial electric products that are connected to the accessory socket
note Be sure to remove the commercial electric products that are connected to the accessory socket before troubleshooting. Otherwise troubleshooting cannot be performed correctly.

DIAGNOSIS

STEP 1. Using scan tool (M.U.T-III), diagnose the CAN bus line.

(1)

caution

To prevent damage to scan tool (M.U.T-III), always turn the power supply mode of the engine switch to the OFF position before connecting or disconnecting scan tool (M.U.T-III).

Connect scan tool (M.U.T-III). Refer to "How to connect scan tool (M.U.T.-III)

(2) Turn the power supply mode of the engine switch to ON.

(3) Diagnose the CAN bus line.

(4) Turn the power supply mode of the engine switch to OFF.

Is the CAN bus line found to be normal?

Go to Step 2

Repair the CAN bus line (Refer to GROUP 54C, Diagnosis

STEP 2. Using scan tool (M.U.T.-III), read the diagnostic trouble code.

(1)

caution

To prevent damage to scan tool (M.U.T.-III), always turn the power supply mode of the engine switch to the OFF position before connecting or disconnecting scan tool (M.U.T.-III).

Connect scan tool (M.U.T.-III). Refer to "How to connect scan tool (M.U.T.-III)

(2) Turn the power supply mode of the engine switch to ON.

(3) Check if OSS-ECU DTC B1133 is stored.

(4) Turn the power supply mode of the engine switch to OFF.

Is the DTC stored?

Refer to diagnostic trouble code chart

Go to Step 3

STEP 3. Using scan tool (M.U.T.-III), check data list.

(1)

caution

To prevent damage to scan tool (M.U.T.-III), always turn the power supply mode of the engine switch to the OFF position before connecting or disconnecting scan tool (M.U.T.-III).

Connect scan tool (M.U.T.-III). Refer to "How to connect the Scan Tool (M.U.T.-III)

(2) Turn the power supply mode of the engine switch to OFF.

(3) Operate the engine switch to change the power supply mode, and check that the data list display of ETACS-ECU is changed.

When power supply mode is ACC or ON.

ETACS-ECU data list
Item No.	Item name	Normal condition
29	Ignition switch(ACC)	ON

When power supply mode is ON or START.

ETACS-ECU data list
Item No.	Item name	Normal condition
30	Ignition switch(IG1)	ON

When power supply mode is ON.

ETACS-ECU data list
Item No.	Item name	Normal condition
44	Ignition switch(IG2)	ON

OK: Normal conditions are displayed for all the items.

Are the check result normal?

(Normal conditions are displayed for all the items.) : Go to Step 4

(Normal condition is not displayed for item No. 29.) : Go to Step 6

(Normal condition is not displayed for item No. 30.) : Go to Step 13

(Normal condition is not displayed for item No. 44.) : Go to Step 19

STEP 4. Using scan tool (M.U.T.-III), check data list.

(1)

caution

To prevent damage to scan tool (M.U.T.-III), always turn the power supply mode of the engine switch to the OFF position before connecting or disconnecting scan tool (M.U.T.-III).

Connect scan tool (M.U.T.-III). Refer to "How to connect the Scan Tool (M.U.T.-III)

(2) Turn the power supply mode of the engine switch to OFF.

(3) Check the OSS-ECU data list.

Item No.	Check item	Power supply mode	Display
16	IG2 output (monitor)	IG-ON	ON
16	IG2 output (monitor)	Other than IG-ON	OFF

OK: Depending on the state of power supply mode, the display is turned ON/OFF.

Is the check result normal?

Go to Step 27

Go to Step 5

STEP 5. Check of short and open circuit in IG2M line between OSS-ECU connector and IG2 relay connector

Is the check result normal?

Go to Step 26

Repair the connector(s) or wiring harness.

STEP 6. ACC relay check

Check that the ACC relay works normally.

Battery voltage	Terminal number	Normal value
No current supply	3 - 4	No continuity
With current supply [terminal 2 (+) - terminal 1 (-)]	3 - 4	Continuity exists (2 Ω or less).

Is the check result normal?

Go to Step 7

Replace the ACC relay.

STEP 7. Resistance measurement at ACC relay connector (ground line)

(1) Disconnect the connector, and measure at the wiring harness side.

(2) Measure the resistance between the ACC relay connector (ground line) and the body ground.

OK: Continuity exists (2 Ω or less)

Is the check result normal?

Go to Step 9

Go to Step 8

STEP 8. Check of open circuit in ground line between the ACC relay connector and the body ground

Is the check result normal?

Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction

Repair the connector(s) or wiring harness.

STEP 9. Voltage measurement at ACC relay connector (ACC line).

(1) Disconnect the connector, and measure at the wiring harness side.

(2) Measure the voltage between the ACC relay connector (ACC line) and the body ground.

OK: System voltage

Is the check result normal?

Go to Step 11

Go to Step 10

STEP 10. Check of short and open circuit in ACC line between the OSS-ECU connector and the ACC relay connector

Is the check result normal?

Replace the OSS-ECU.

Repair the connector(s) or wiring harness.

STEP 11. Check of short and open circuit in power supply line between the junction block connector and the ACC relay connector

Is the check result normal?

Go to Step 12

Repair the connector(s) or wiring harness.

STEP 12. Voltage measurement at ETACS-ECU connector (ACCI line).

(1) Turn the engine switch from "LOCK" (OFF) position to "ON" position.

(2) Disconnect the connector, and measure at the wiring harness side.

(3) Measure the voltage between the ETACS-ECU connector (ACCI line) and the body ground.

OK: System voltage

Is the check result normal?

Go to Step 26

Repair the wiring harness, ACCI line between the ETACS-ECU connector and the fusible link.

STEP 13. IG1 relay check

Check that the IG1 relay works normally.

Battery voltage	Terminal number	Normal value
No current supply	3 - 4	No continuity
With current supply [terminal 2 (+) - terminal 1 (-)]	3 - 4	Continuity exists (2 Ω or less).

Is the check result normal?

Go to Step 14

Replace the IG1 relay.

STEP 14. Resistance measurement at IG1 relay connector (ground line)

(1) Disconnect the connector, and measure at the wiring harness side.

(2) Measure the resistance between the IG1 relay connector (ground line) and the body ground.

OK: Continuity exists (2 Ω or less)

Is the check result normal?

Go to Step 16

Go to Step 15

STEP 15. Check of open circuit in ground line between the IG1 relay connector and the body ground

Is the check result normal?

Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction

Repair the connector(s) or wiring harness.

STEP 16. Voltage measurement at IG1 relay connector (IG1 line).

(1) Disconnect the connector, and measure at the wiring harness side.

(2) Measure the voltage between the IG1 relay connector (IG1 line) and the body ground.

OK: System voltage

Is the check result normal?

Go to Step 18

Go to Step 17

STEP 17. Check of short and open circuit in IG1 line between the OSS-ECU connector and the IG1 relay connector

Is the check result normal?

Replace the OSS-ECU.

Repair the connector(s) or wiring harness.

STEP 18. Voltage measurement at combination meter connector (IG1 line).

(1) Turn the engine switch from "LOCK" (OFF) position to "ON" position.

(2) Disconnect the connector, and measure at the wiring harness side.

(3) Measure the voltage between the combination meter connector (IG1 line) and the body ground.

OK: System voltage

Is the check result normal?

Go to Step 26

Repair the wiring harness, IG1 line between the combination meter connector and the fusible link.

STEP 19. IG2 relay check

Check that the IG2 relay works normally.

Battery voltage	Terminal number	Normal value
No current supply	3 - 4	No continuity
With current supply [terminal 2 (+) - terminal 1 (-)]	3 - 4	Continuity exists (2 Ω or less).

Is the check result normal?

Go to Step 20

Replace the IG2 relay.

STEP 20. Resistance measurement at IG2 relay connector (ground line)

(1) Disconnect the connector, and measure at the wiring harness side.

(2) Measure the resistance between the IG2 relay connector (ground line) and the body ground.

OK: Continuity exists (2 Ω or less)

Is the check result normal?

Go to Step 22

Go to Step 21

STEP 21. Check of open circuit in ground line between the IG2 relay connector and the body ground

Is the check result normal?

Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction

Repair the connector(s) or wiring harness.

STEP 22. Voltage measurement at IG2 relay connector (IG2 line).

(1) Disconnect the connector, and measure at the wiring harness side.

(2) Measure the voltage between the IG2 relay connector (IG2 line) and the body ground.

OK: System voltage

Is the check result normal?

Go to Step 24

Go to Step 23

STEP 23. Check of short and open circuit in IG2 line between the OSS-ECU connector and the IG2 relay connector

Is the check result normal?

Replace the OSS-ECU.

Repair the connector(s) or wiring harness.

STEP 24. Check of short and open circuit in power supply line between the junction block connector and the IG2 relay connector

Is the check result normal?

Go to Step 25

Repair the connector(s) or wiring harness.

STEP 25. Voltage measurement at ETACS-ECU connector (IG2 line).

(1) Turn the engine switch from "LOCK" (OFF) position to "ON" position.

(2) Disconnect the connector, and measure at the wiring harness side.

(3) Measure the voltage between the ETACS-ECU connector (IG2 line) and the body ground.

OK: System voltage

Is the check result normal?

Go to Step 26

Repair the wiring harness, IG2 line between the ETACS-ECU connector and the fusible link.

STEP 26. Using scan tool (M.U.T.-III), check data list.

(1)

caution

To prevent damage to scan tool (M.U.T.-III), always turn the power supply mode of the engine switch to the OFF position before connecting or disconnecting scan tool (M.U.T.-III).

Connect scan tool (M.U.T.-III). Refer to "How to connect the Scan Tool (M.U.T.-III)

(2) Turn the power supply mode of the engine switch to OFF.

(3) Operate the engine switch to change the power supply mode, and check that the data list display of ETACS-ECU is changed.

When power supply mode is ACC or ON.

ETACS-ECU data list
Item No.	Item name	Normal condition
29	Ignition switch(ACC)	ON

When power supply mode is ON or START.

ETACS-ECU data list
Item No.	Item name	Normal condition
30	Ignition switch(IG1)	ON

When power supply mode is ON.

ETACS-ECU data list
Item No.	Item name	Normal condition
44	Ignition switch(IG2)	ON

OK: Normal conditions are displayed for all the items.

Are the check result normal?

(Normal conditions are displayed for all the items.) : Go to Step 27

(Normal condition is not displayed for item No. 29.) : Go to Step 28

(Normal condition is not displayed for item No. 30.) : Go to Step 28

(Normal condition is not displayed for item No. 44.) : Go to Step 28

STEP 27. Recheck for diagnostic trouble code.

Check again if the DTC is stored in the OSS-ECU.

(1) Erase the DTC.

(2) Turn the engine switch from "LOCK" (OFF) position to "ON" position.

(3) On completion, check that the DTC is stored again.

Is the DTC stored?

Replace the ETACS-ECU.

Intermittent malfunction is suspected (Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions

STEP 28. Recheck for diagnostic trouble code.

Check again if the DTC is stored in the OSS-ECU.

(1) Erase the DTC.

(2) Turn the engine switch from "LOCK" (OFF) position to "ON" position.

(3) On completion, check that the DTC is not stored again.

Is the diagnostic trouble code stored?

Replace the OSS-ECU and register the VIN (Refer to

Intermittent malfunction is suspected (Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions