DTC P3226-562: DC/DC Boost Converter Temperature Sensor; DTC P3226-563: DC/DC Boost Converter Temperature Sensor: Procedure

WARNING: This page is about a different variant/trim than selected.

CHECK DTC OUTPUT (HV)

Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

Check if DTCs are output.

Result

DTC No.	Relevant Diagnosis
P0A93-346	Inverter cooling system malfunction

HINT:

Turning the power switch on (IG) with the service plug grip and inverter cover removed causes interlock switch system DTC P0A0D-350 to be output.
P3226-562 or P3226-563 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output.

YES → See step 24

NO: Go to next step

CHECK CONNECTOR CONNECTION CONDITION (INVERTER WITH CONVERTER ASSEMBLY CONNECTOR). Refer to PROCEDURE - Step 4
NG → CONNECT SECURELY

OK: Go to next step
CHECK QUANTITY OF HV COOLANT. Refer to PROCEDURE - Step 3
B → ADD COOLANT

C → CHECK FOR COOLANT LEAKS AND ADD COOLANT

A: Go to next step
CHECK COOLANT HOSE. Refer to PROCEDURE - Step 4
NG → CORRECT THE PROBLEM

OK: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE WATER PUMP). Refer to PROCEDURE - Step 5
NG → See step 8

OK: Go to next step
PERFORM ACTIVE TEST USING TECHSTREAM (CONTROL THE ELECTRIC COOLING FAN). Refer to PROCEDURE - Step 6
NG → See step 7

OK → See step 25
CHECK CONNECTOR CONNECTION CONDITION (COOLING FAN MOTOR CONNECTOR). Refer to PROCEDURE - Step 8
NG → CONNECT SECURELY

OK → See step 26
PERFORM ACTIVE TEST USING TECHSTREAM (ACTIVATE THE WATER PUMP). Refer to PROCEDURE - Step 9
OK → ADD COOLANT

NG: Go to next step
CHECK FUSE (INV W/P FUSE). Refer to PROCEDURE - Step 10
NG → See step 15

OK: Go to next step
CHECK ENGINE ROOM R/B. Refer to PROCEDURE - Step 11
NG → REPAIR OR REPLACE ENGINE ROOM R/B

OK: Go to next step
CHECK CONNECTOR CONNECTION CONDITION (WATER PUMP WITH MOTOR & BRACKET ASSEMBLY CONNECTOR). Refer to PROCEDURE - Step 12
NG → CONNECT SECURELY

OK: Go to next step
CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR). Refer to PROCEDURE - Step 3
NG → CONNECT SECURELY

OK: Go to next step
CHECK HARNESS AND CONNECTOR (WATER PUMP WITH MOTOR POWER SOURCE CIRCUIT). Refer to PROCEDURE - Step 14
NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step
CHECK WATER PUMP WITH MOTOR & BRACKET ASSEMBLY. Refer to PROCEDURE - Step 15
NG → See step 27

OK → See step 28
CHECK CONNECTOR CONNECTION CONDITION (WATER PUMP WITH MOTOR & BRACKET ASSEMBLY CONNECTOR). Refer to PROCEDURE - Step 16
NG → See step 20

OK: Go to next step
CHECK CONNECTOR CONNECTION CONDITION (HYBRID VEHICLE CONTROL ECU CONNECTOR). Refer to PROCEDURE - Step 3
NG → See step 21

OK: Go to next step
CHECK HARNESS AND CONNECTOR (WATER PUMP WITH MOTOR POWER SOURCE CIRCUIT). Refer to PROCEDURE - Step 18
NG → See step 22

OK: Go to next step
CHECK WATER PUMP WITH MOTOR & BRACKET ASSEMBLY. Refer to PROCEDURE - Step 19
NG → See step 23

OK: Go to next step
REPLACE HYBRID VEHICLE CONTROL ECU. Refer to PROCEDURE - Step 20
NEXT → REPLACE FUSE (INV W/P)
CONNECT SECURELY. Refer to PROCEDURE - Step 21
NEXT → REPLACE FUSE (INV W/P)
CONNECT SECURELY. Refer to PROCEDURE - Step 22
NEXT → REPLACE FUSE (INV W/P)
REPAIR OR REPLACE HARNESS OR CONNECTOR. Refer to PROCEDURE - Step 23
NEXT → REPLACE FUSE (INV W/P)
REPLACE WATER PUMP WITH MOTOR & BRACKET ASSEMBLY. Refer to PROCEDURE - Step 24
NEXT → REPLACE FUSE (INV W/P)
GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART
REPLACE INVERTER WITH CONVERTER ASSEMBLY. Refer to REMOVAL
CHECK COOLING FAN SYSTEM. Refer to ON-VEHICLE INSPECTION
REPLACE WATER PUMP WITH MOTOR & BRACKET ASSEMBLY. Refer to REMOVAL
REPLACE HYBRID VEHICLE CONTROL ECU. Refer to REMOVAL