P3207-753

DESCRIPTION

The HV control ECU monitors the connection status of the circuit breaker sensor (LH) signal (collision signal) line. If the ECU detects a malfunction, it will alert the driver.

DTC No.	INF Code	DTC Detection Condition	Trouble Area
P3207	753	GND short in rear circuit breaker sensor (LH) circuit	Wire harness or connector Rear circuit breaker sensor LH HV control ECU
P3208	754	Open or +B short in circuit breaker sensor (LH) circuit	Wire harness or connector Rear circuit breaker sensor LH HV control ECU

WIRING DIAGRAM

INSPECTION PROCEDURE

1. CHECK 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
   BS2 (H30-17) - BS2G (H30-28)	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:

   P3207-753 and P3208-754 are output.
   

NO	CHECK FOR INTERMITTENT PROBLEMS

YES
REPLACE HYBRID VEHICLE CONTROL ECU

4. INSPECT REAR CIRCUIT BREAKER SENSOR LH

1. Disconnect the C21 rear circuit breaker sensor LH connector.

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

   Standard Resistance:

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

NG	REPLACE REAR CIRCUIT BREAKER SENSOR LH

OK
REPAIR OR REPLACE HARNESS OR CONNECTOR