DTC P26CE-37: Engine Coolant Pump Overspeed [12/2019 - 10/2022]: Procedure

1. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTC P26CE-37 is output	A
   DTC P26CE-37 and other DTCs are output	B
   DTC P26CE-37 and P26CB-71 are output	C

   HINT: 

   • If any DTCs other than P26CE-37 are output, troubleshoot those DTCs first.
   • If both DTC P26CB-71 (pump stuck) and P26CE-37 (pump overspeed) are stored, perform troubleshooting for DTC P26CB-71 first as the engine coolant pump assembly may be stuck.

Result: 

B 

GO TO DTC CHART  . Refer to DIAGNOSTIC TROUBLE CODE CHART [12/2019 - 09/2020] , or refer to DIAGNOSTIC TROUBLE CODE CHART [09/2020 - 10/2021] , or refer to DIAGNOSTIC TROUBLE CODE CHART [10/2021 - 10/2022]

Result: 

C 

GO TO DTC P26CB-71 

Refer to DTC P26CB-71: Engine Coolant Pump Actuator Stuck [12/2019 - 10/2022] 

Result: 

A 

See step  2

1. Check that the engine coolant level is between the FULL and LOW lines.

   Refer to PROCEDURE - Step 2

   Result

   Result	Proceed to
   Engine coolant level is above the LOW line	A
   Engine coolant level is below the LOW line	B

Result: 

A 

See step  6

Result: 

B 

See step  3

1. Check the areas around the engine and heater for engine coolant leaks.

   Refer to PROCEDURE - Step 1

   HINT: 

   If the engine oil is cloudy during the engine oil level gauge check, it means that engine coolant has entered the engine lubrication system.

   OK

   No leaks.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  5

Result: 

OK 

See step  4

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

   Make sure not to add engine coolant when the engine is hot.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  6

1. Repair any engine coolant leaks.

   HINT: 

   Add engine coolant and perform air bleeding after repair.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  6

1. Bleed air from the cooling system.

   Refer to REPLACEMENT [12/2019 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  7

1. Clear the DTCs.

   Powertrain > Engine > Clear DTCs 

2. Turn the ignition switch off and wait for at least 30 seconds.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  8

1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
2. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTC P26CB-71 is output	B
   DTC P26CE-37 is output	C

Result: 

A 

END 

Result: 

B 

GO TO DTC P26CB-71 

Refer to DTC P26CB-71: Engine Coolant Pump Actuator Stuck [12/2019 - 10/2022] 

Result: 

C 

See step  9

1. Bleed air from the cooling system.

   Refer to REPLACEMENT [12/2019 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  10

1. Clear the DTCs.

   Powertrain > Engine > Clear DTCs 

2. Turn the ignition switch off and wait for at least 30 seconds.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  11

1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
2. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTC P26CE-37 is output	B

Result: 

A 

END 

Result: 

B 

See step  12

Refer to REMOVAL [12/2019 - ]

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.

Result

Result: 

NEXT 

See step  13

1. Clear the DTCs.

   Powertrain > Engine > Clear DTCs 

2. Turn the ignition switch off and wait for at least 30 seconds.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  14

1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.
2. Read the DTCs.

   Powertrain > Engine > Trouble Codes 

   HINT: 

   If no DTC is output, the repair has been successfully completed.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END