DTC B1385-71: A/C Cooling Electric Expansion Valve Actuator Stuck [08/2023 - ]: Procedure

Pre-procedure1

• Install a manifold gauge set.

  HINT: 

  Refer to ON-VEHICLE INSPECTION [10/2022 - ]

• Perform the Active Test according to the display on the GTS.

  Body Electrical > Air Conditioner > Active Test 

  Tester Display	Measurement Item	Control Range	Diagnostic Note
  Cooling Electric Expansion Valve	This test activates cooling electric expansion valve to a target position. (Cooling electric expansion valve (cooler expansion valve))	0%: Min. 100%: Max.	Ignition switch ON (READY) Blower: Manual Hi Set Temperature: Manual Lo Ambient Temperature: 0°C (32°F) or more than 0°C (32°F)

  Body Electrical > Air Conditioner > Active Test 

  Tester Display
  Cooling Electric Expansion Valve

  OK

  Read the gauge of the manifold gauge set and check that the value is changing.

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

NG 

REPLACE COOLING ELECTRIC EXPANSION VALVE (COOLER EXPANSION VALVE). Refer to  REMOVAL [08/2023 - ] 

Result: 

OK 

See step  2

1. Check for DTCs.

   Body Electrical > Air Conditioner > Trouble Codes 

   HINT: 

   Check even when the DTCs detected for temporary failures.

   Result

   Result	Proceed to
   P1501-7A is not output	A
   P1501-7A is output	B

Result: 

B 

GO TO DTC CHART (P1501-7A). Refer to  DTC P1501-7A: Hybrid/EV Battery Cooling Refrigerant Gas Fluid Leak or Seal Failure [08/2023 - ] 

Result: 

A 

See step  3

1. Check for DTCs.

   Powertrain > HV Battery > Trouble Codes 

   HINT: 

   Check even when the DTCs detected for temporary failures.

   Result

   Result	Proceed to
   P0D1A-71 and P0DE8-71 are not output	A
   P0D1A-71 is output	B
   P0DE8-71 is output	C

   Relevant DTC
   P0D1A-71	Hybrid/EV Battery Pack Coolant Control Valve "B" Performance/Stuck Off Actuator Stuck
   P0DE8-71	Hybrid/EV Battery Pack Coolant Control Valve "C" Performance/Stuck Off Actuator Stuck

Result: 

A 

REPLACE HEAT PUMP ECU ASSEMBLY. Refer to  REMOVAL [08/2023 - ] 

Result: 

B 

GO TO DTC CHART (P0D1A-71). Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2023 - ] 

Result: 

C 

GO TO DTC CHART (P0DE8-71). Refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2023 - ]