DTC P16B4-79: Multi Flow Control Valve Stopper Mechanical Linkage Failure [12/2017 - ]: Procedure

CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P16B4-79)

Connect the Techstream to the DLC3.
Turn the engine switch on (IG).
Turn the Techstream on.
Enter the following menus: Powertrain / Engine / Trouble Codes.

Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Result	Proceed to
DTC P16B4-79 is output	A
DTC P16B4-79 and other DTCs are output	B

HINT:

If any DTCs other than P16B4-79 are output, troubleshoot those DTCs first.

Result:

GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2017 - 09/2018] , or refer to DIAGNOSTIC TROUBLE CODE CHART [09/2018 - 09/2019] , or refer to DIAGNOSTIC TROUBLE CODE CHART [09/2019 - 10/2020] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2020 - 10/2022] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2022 - 10/2023] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2023 - ]

Result:

See step 2

CUSTOMER PROBLEM ANALYSIS AND CHECK VEHICLE (CHECK FOR OVERHEATING)

Perform a customer problem analysis to check whether overheating occurred.

HINT:

Check whether "High coolant temperature warning light" was displayed on the combination meter.

Result

Result	Proceed to
Overheating occurred	A
Overheating did not occur	B

Result:

See step 7

Result:

See step 3

CHECK VEHICLE (CHECK FOR OVERHEATING)

Check the engine coolant quantity.

Refer to ON-VEHICLE INSPECTION [12/2017 - ]

Result

Result	Proceed to
At or below reserve tank LOW level or trace of coolant boiling over	A
At or above reservoir tank LOW level and no trace of coolant boiling over	B

Result:

See step 7

Result:

See step 4

CHECK FOR COOLANT LEAK

Check the engine cooling system for coolant leaks.

Refer to ON-VEHICLE INSPECTION [12/2017 - ]

No leaks.

Result

Proceed to
OK
NG

Result:

See step 6

Result:

See step 5

REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA

Repair any engine coolant leaks.

HINT:

Check for damage to parts due to overheating and replace any abnormal parts.

Result

Proceed to
NEXT

Result:

See step 6

ADD COOLANT

Fill the reservoir tank up to the FULL line with engine coolant.

Refer to REPLACEMENT [12/2017 - ]

HINT:

Add engine coolant and perform air bleeding after repair.

Result

Proceed to
NEXT

Result:

See step 7

REPLACE WATER CONTROL VALVE

Replace the water control valve.

Refer to REMOVAL [12/2017 - 09/2018] , or refer to REMOVAL [09/2018 - 10/2020] , or refer to REMOVAL [10/2020 - 10/2022] , or refer to REMOVAL [10/2022 - 10/2023] , or refer to REMOVAL [10/2023 - ]

Result

Proceed to
NEXT

Result:

REPLACE COOLANT

Refer to REPLACEMENT [12/2017 - ]

HINT:

When replacing any cooling system parts, if excessive deposits of rust or scale exist or the concentration of the engine coolant is abnormal, replace the engine coolant.