P3137-348

DESCRIPTION

The HV control ECU monitors the connection status of the circuit breaker sensor No.1 signal (collision signal) line. If the ECU detects a malfunction, it will alert the driver.

DTC No.	INF Code	DTC Detection Condition	Trouble Area
P3137	348	GND short in circuit breaker sensor No.1 circuit	Wire harness or connector Circuit breaker sensor No.1 HV Control ECU
P3138	349	Open or +B short in circuit breaker sensor No.1 circuit	Wire harness or connector Circuit breaker sensor No.1 HV Control ECU

WIRING DIAGRAM

INSPECTION PROCEDURE

1. INSPECT HYBRID VEHICLE CONTROL ECU (VOLTAGE CHECK)

1. Turn the ignition switch to the ON position.

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

   Standard voltage:

   Tester Connection	Specified Condition
   AS1G (H34-34) - AS1 (H34-27)	2.3 to 3.1 V

NG	Go to step 4

OK

2. CLEAR DTC (HV)

1. Connect the intelligent tester to the DLC3.

2. Turn the ignition switch to the ON position.

3. Select the following menu items: Powertrain / Hybrid Control / DTC / Clear.

NEXT

3. RECONFIRM OUTPUT DTCS (HV)

1. Turn the ignition switch to the ON position.

2. Select the following menu items: Powertrain / Hybrid Control / DTC.

3. Read output DTCs. (Click here)

   Result:

   P3137-348 and P3138-349 are output.
   

NO	CHECK FOR INTERMITTENT PROBLEMS

YES
REPAIR HYBRID VEHICLE CONTROL ECU

4. INSPECT CIRCUIT BREAKER SENSOR NO.1

1. Turn the ignition switch off.

2. Disconnect the C17 circuit breaker sensor No.1 connector.

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

   Standard Resistance:

   Tester Connection	Specified Condition
   1(SIF-) to 2(SIF+)	0.65k to 1.0kΩ at 20°C ( 68°F)

NG	REPLACE CIRCUIT BREAKER SENSOR NO.1

OK
REPAIR OR REPLACE HARNESS OR CONNECTOR