DTC P3004-803: Power Cable Malfunction: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
4. Check if DTCs are output.

   Result

   DTC No.	Relevant Part
   P0A95, P0AFA	Open in EV battery fuse
   P0ADF-229, P0AE0-228	SMRG control line
   P0ADC-226, P0ADB-227	SMRB control line
   P0A1A-156, 658, 659, 151, 155, P0A1B-511, 164, 163, 512, 193, 786, 788, 661, P0A78-266, 267, 523, 586, P0A94-442	VH sensor circuit

YES → GO TO DTC CHART 

NO: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Read and record the DTCs and freeze frame data.
4. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
5. Clear the DTCs.

NEXT: Go to next step 

1. Turn the power switch on (READY), move the shift lever to the D position, and depress both the accelerator pedal and brake pedal.

   HINT: 

   • Depressing both the accelerator pedal and brake pedal causes the HV battery current to flow and can be used to check that there is no problem with the high-voltage wiring.
   • Depressing both the Accelerator pedal and brake pedal causes accelerator and brake depressing in the inappropriate operation and history data to be counted.
2. Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.
3. Check if DTCs are output.

   Result

   Result	Proceed to
   P3004-803 is output, or no DTCs are output.	A
   Power switch is not turned on (READY) and P3004-131 is output.	B

B → GO TO INSPECTION PROCEDURE RELEVANT TO OUTPUT DTC (P3004-131) 

A: Go to next step 

1. Check the connections of the hybrid vehicle control ECU connectors.
   Fig 1: Checking Connector Connection Condition (HV Control ECU Connector)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result

   The connectors are connected securely and there are no contact problems.

NG → CONNECT SECURELY 

OK: Go to next step 

1. Turn the power switch off and remove the service plug grip.. Refer to PRECAUTION
   NOTE:

   After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair service information because this may cause a malfunction.

2. Disconnect connector A54 from the hybrid vehicle control ECU.
3. Disconnect the battery pack wire connector. Refer to COMPONENTS .
   Fig 2: Locating Battery Pack Wire Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

   Due to the time required to disconnect the HV relay assembly and hybrid vehicle converter connectors, the battery pack wire resistance check should be performed before these connectors are disconnected.

4. Measure the resistance according to the value(s) in the table below.
   Fig 3: Identifying A54 And VN1 Connectors Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester Connection	Specified Condition
   SMRB (A54-41) - CON2 (VN1-3)	Below 1 Ω
   SMRG (A54-81) - CON3 (VN1-2)	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Check that the service plug grip is not installed.
2. Disconnect connector N6 from the HV relay assembly. Refer to COMPONENTS .
   Fig 4: Identifying N6 Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance according to the value(s) in the table below.
   Fig 5: Identifying Battery Pack Wire Connector Terminal VN1

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester Connection	Specified Condition
   CON2 (VN1-3) - SMRB (N6-3)	Below 1 Ω
   CON3 (VN1-2) - SMRG (N6-1)	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   7