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Air Conditioning System (Diagnostic Codes & Circuit Tests): Other Lexus IS III

Automatic HVAC System 4 illustrations ~14259 words

CAUTION / NOTICE / HINT

Note. Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

  1. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY - IG POWER SOURCE) Disconnect the K65 air conditioning control assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition K65-8 (IG+) - Body ground Engine switch off Below 1 V K65-8 (IG+) - Body ground Engine switch on (IG) 11 to 14 V Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY - BODY GROUND) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K65-14 (GND) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - AIR CONDITIONING CONTROL ASSEMBLY) Disconnect the K10 air conditioning amplifier assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K65-6 (LIN1) - K10-21 (RLIN) Always Below 1 ohms K65-6 (LIN1) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. REPLACE AIR CONDITIONING CONTROL ASSEMBLY Replace the air conditioning control assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S12000611432014102400000) HINT: Since the air conditioning control assembly cannot be inspected while it is removed from the vehicle, replace the air conditioning control assembly with a new or known good one and check that the condition returns to normal. OK Air conditioning control assembly operation returns to normal. Result Result Proceed to OK A NG (When troubleshooting according to Problem Symptoms Table) B NG (When troubleshooting according to the DTC) C Result: 1 A END (AIR CONDITIONING CONTROL ASSEMBLY WAS DEFECTIVE) Result: 2 B PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 3 C REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000)

HINT

If DTC B1423/23 and B14B8 are output at the same time, troubleshoot for DTC B1423/23 first.

Refer to DTC B1423/23: Pressure Sensor Circuit [04/2013 - ]

  1. CHECK FOR AIR CONDITIONING SYSTEM LEAK Install a manifold gauge set. Recover the refrigerant from the air conditioning system using a refrigerant recovery unit. Evacuate the air conditioning system and check that vacuum can be maintained in it. OK Vacuum can be maintained in the air conditioning system. HINT: If vacuum cannot be maintained in the air conditioning system, refrigerant may be leaking from it. In this case, it is necessary to repair or replace the leaking part of the air conditioning system. Result Proceed to OK NG Result: 2 NG See step 7 Result: 1 OK See step 2
  2. CHARGE SYSTEM WITH REFRIGERANT Add an appropriate amount of refrigerant. Refer to «REPLACEMENT [04/2013 - ]»(ref-665718-S29281733902014102400000) Result Proceed to NEXT Result: 1 NEXT See step 3
  3. CHECK FOR DTC Check for DTCs when the following conditions are met. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Measurement Condition Item Condition A/C switch On A/C operation time 15 minutes or more Ambient temperature* 0 to 49°C (32 to 120°F) Engine coolant temperature 45°C (113°F) or more Engine condition Engine running *: If the ambient temperature is not within the range shown, do not perform this check. Result Result Proceed to DTC B14B8 is output A DTC B14B8 is not output B Result: 2 B END Result: 1 A See step 4
  4. REPLACE COOLER EXPANSION VALVE Replace the cooler expansion valve with a new or known good one. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Replace the cooler expansion valve with a new or known good one because the cooler expansion valve is either stuck or clogged. Result Proceed to NEXT Result: 1 NEXT See step 5
  5. CHARGE SYSTEM WITH REFRIGERANT Add an appropriate amount of refrigerant. Refer to «REPLACEMENT [04/2013 - ]»(ref-665718-S29281733902014102400000) Result Proceed to NEXT Result: 1 NEXT See step 6
  6. CHECK FOR DTC Check for DTCs when the following conditions are met. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Measurement Condition Item Condition A/C switch On A/C operation time 15 minutes or more Ambient temperature* 0 to 49°C (32 to 120°F) Engine coolant temperature 45°C (113°F) or more Engine condition Engine running *: If the ambient temperature is not within the range shown, do not perform this check. Result Result Proceed to DTC B14B8 is output A DTC B14B8 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B END
  7. REPAIR AIR CONDITIONING SYSTEM LEAK Identify the area where refrigerant leaks. Refer to «REPLACEMENT [04/2013 - ]»(ref-665718-S29281733902014102400000) Repair the identified area of the air conditioning system. Evacuate the air conditioning system. Result Proceed to NEXT Result: 1 NEXT See step 8
  8. CHARGE SYSTEM WITH REFRIGERANT Add an appropriate amount of refrigerant. Refer to «REPLACEMENT [04/2013 - ]»(ref-665718-S29281733902014102400000) Result Proceed to NEXT Result: 1 NEXT See step 9
  9. CHECK FOR DTC Check for DTCs when the following conditions are met. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Measurement Condition Item Condition A/C switch On A/C operation time 15 minutes or more Ambient temperature* 0 to 49°C (32 to 120°F) Engine coolant temperature 45°C (113°F) or more Engine condition Engine running *: If the ambient temperature is not within the range shown, do not perform this check. Result Result Proceed to DTC B14B8 is output A DTC B14B8 is not output B Result: 2 B END Result: 1 A See step 10
  10. REPLACE COOLER EXPANSION VALVE Replace the cooler expansion valve with a new or known good one. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Replace the cooler expansion valve with a new or known good one because the cooler expansion valve is either stuck or clogged. Result Proceed to NEXT Result: 1 NEXT See step 11
  11. CHARGE SYSTEM WITH REFRIGERANT Add an appropriate amount of refrigerant. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) Result Proceed to NEXT Result: 1 NEXT See step 12
  12. CHECK FOR DTC Check for DTCs when the following conditions are met. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Measurement Condition Item Condition A/C switch On A/C operation time 15 minutes or more Ambient temperature* 0 to 49°C (32 to 120°F) Engine coolant temperature 45°C (113°F) or more Engine condition Engine running *: If the ambient temperature is not within the range shown, do not perform this check. Result Result Proceed to DTC B14B8 is output A DTC B14B8 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B END
  1. GO TO CAN COMMUNICATION SYSTEM HINT: Refer to CAN Communication System. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665785-S15342612202014102400000) Result Proceed to NEXT Result: 1 NEXT END
  1. INSPECT COOLER COMPRESSOR ASSEMBLY (COMPRESSOR SOLENOID) for 2WD *a Component without harness connected (Cooler Compressor Assembly (Compressor Solenoid) (for 2WD)) Disconnect the F66 cooler compressor assembly (compressor solenoid) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition F66-1 (SOL-) - F66-2 (SOL+) 25°C (77°F) 10.1 to 11.1 ohms for AWD *a Component without harness connected (Cooler Compressor Assembly (Compressor Solenoid) (for AWD)) Disconnect the F69 cooler compressor assembly (compressor solenoid) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition F69-3 (SOL+) - F69-6 (SOL-) 25°C (77°F) 10.1 to 11.1 ohms Result Proceed to Proceed to OK A NG (for 2WD) B NG (for AWD) C Result: 2 B REPLACE COOLER COMPRESSOR ASSEMBLY (COMPRESSOR SOLENOID). Refer to «REMOVAL [04/2013 - ]»(ref-665718-S37916415182014102400000) Result: 3 C REPLACE COOLER COMPRESSOR ASSEMBLY (COMPRESSOR SOLENOID). Refer to «REMOVAL [04/2013 - ]»(ref-665718-S30893690972014102400000) Result: 1 A See step 2
  2. CHECK HARNESS AND CONNECTOR (COOLER COMPRESSOR ASSEMBLY (COMPRESSOR SOLENOID) - BODY GROUND) Measure the resistance according to the value(s) in the table below. Standard Resistance FOR 2WD Tester Connection Condition Specified Condition F66-1 (SOL-) - Body ground Always Below 1 ohms FOR AWD Tester Connection Condition Specified Condition F69-6 (SOL-) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (COOLER COMPRESSOR ASSEMBLY (COMPRESSOR SOLENOID) - AIR CONDITIONING AMPLIFIER ASSEMBLY) Disconnect the K10 air conditioning amplifier assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance FOR 2WD Tester Connection Condition Specified Condition F66-2 (SOL+) - K10-4 (SOL+) Always Below 1 ohms F66-2 (SOL+) - Body ground Always 10 kohms or higher FOR AWD Tester Connection Condition Specified Condition F69-3 (SOL+) - K10-4 (SOL+) Always Below 1 ohms F69-3 (SOL+) - Body ground Always 10 kohms or higher Result Result Proceed to NG A OK (When troubleshooting according to the Problem Symptoms Table) B OK (When troubleshooting according to the DTC) C Result: 1 A REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 2 B PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 3 C REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000)

HINT

Confirm that no mechanical problem is present because this DTC can be output when either a damper link or damper is mechanically locked.

  1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Operate the driver side temperature adjustment switch. Enter the following menus: Body Electrical / Air Conditioner / Data List. Check the value(s) by referring to the table below. Body Electrical > Air Conditioner > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Air Mix Servo Targ Pulse(D) No. 2 air conditioning radiator damper servo sub-assembly (driver side upper air mix) target pulse Min.: 128 Max.: 383 MAX. COLD: 254 (pulse) MAX. HOT: 360 (pulse) - Air Mix Servo Actual Pulse(D) No. 2 air conditioning radiator damper servo sub-assembly (driver side upper air mix) actual pulse Min.: 128 Max.: 383 MAX. COLD: 254 (pulse) MAX. HOT: 360 (pulse) - Body Electrical > Air Conditioner > Data List Tester Display Air Mix Servo Targ Pulse(D) Air Mix Servo Actual Pulse(D) OK When the driver side temperature adjustment switch is turned from MAX COLD to MAX HOT, the actual pulse changes following the target pulse. Result Result Proceed to Target pulse changes but actual pulse does not change A Target pulse and actual pulse do not change B Actual pulse changes following the target pulse (When troubleshooting according to the DTC) C Actual pulse changes following the target pulse (When troubleshooting according to Problem Symptoms Table) D Result: 2 B REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 3 C See step 4 Result: 4 D PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 1 A See step 2
  2. REPLACE NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (DRIVER SIDE UPPER AIR MIX) Replace the No. 2 air conditioning radiator damper servo sub-assembly (driver side upper air mix). Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1446/46 is output A DTC B1446/46 is not output B Result: 2 B END (NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (DRIVER SIDE UPPER AIR MIX) WAS DEFECTIVE) Result: 1 A See step 3
  3. REPLACE AIR CONDITIONING HARNESS ASSEMBLY Replace the air conditioning harness assembly. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the air conditioning harness assembly cannot be inspected while it is removed from the vehicle, replace the air conditioning harness assembly with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1446/46 is output A DTC B1446/46 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B END (AIR CONDITIONING HARNESS ASSEMBLY WAS DEFECTIVE)
  4. RECONFIRM DTC OUTPUT Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1446/46 is output A DTC B1446/46 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665529-S21853141262014102400000)

HINT

Confirm that no mechanical problem is present because this DTC can be output when either a damper link or damper is mechanically locked.

  1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Operate the mode switch. Enter the following menus: Body Electrical / Air Conditioner / Data List. Check the value(s) by referring to the table below. Body Electrical > Air Conditioner > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Air Outlet Servo Pulse (D) No. 3 air conditioning radiator damper servo sub-assembly target pulse Min.: 128 Max.: 383 FACE1: 245 (pulse) FACE2: 254 (pulse) FACE: 230 (pulse) B/L: 217 (pulse) B/L2: 209 (pulse) FOOT-D: 199 (pulse) FOOT-R: 199 (pulse) FOOT-F (manual mode): 199 (pulse) FOOT-F (automatic mode): 183 (pulse) FOOT/DEF: 168 (pulse) DEF: 140 (pulse) - Air Outlet Servo Actu Pulse(D) No. 3 air conditioning radiator damper servo sub-assembly actual pulse Min.: 128 Max.: 383 FACE1: 245 (pulse) FACE2: 254 (pulse) FACE: 230 (pulse) B/L: 217 (pulse) B/L2: 209 (pulse) FOOT-D: 199 (pulse) FOOT-R: 199 (pulse) FOOT-F (manual mode): 199 (pulse) FOOT-F (automatic mode): 183 (pulse) FOOT/DEF: 168 (pulse) DEF: 140 (pulse) - Body Electrical > Air Conditioner > Data List Tester Display Air Outlet Servo Pulse (D) Air Outlet Servo Actu Pulse(D) OK When the mode switch is operated, the actual pulse changes following the target pulse. Result Result Proceed to Target pulse changes but actual pulse does not change A Target pulse and actual pulse do not change B Actual pulse changes following the target pulse (When troubleshooting according to the DTC) C Actual pulse changes following the target pulse (When troubleshooting according to Problem Symptoms Table) D Result: 2 B REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 3 C See step 4 Result: 4 D PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 1 A See step 2
  2. REPLACE NO. 3 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY Replace the No. 3 air conditioning radiator damper servo sub-assembly. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1443/43 is output A DTC B1443/43 is not output B Result: 2 B END (NO. 3 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY WAS DEFECTIVE) Result: 1 A See step 3
  3. REPLACE AIR CONDITIONING HARNESS ASSEMBLY Replace the air conditioning harness assembly. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the air conditioning harness assembly cannot be inspected while it is removed from the vehicle, replace the air conditioning harness assembly with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1443/43 is output A DTC B1443/43 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B END (AIR CONDITIONING HARNESS ASSEMBLY WAS DEFECTIVE)
  4. RECONFIRM DTC OUTPUT Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1443/43 is output A DTC B1443/43 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665529-S21853141262014102400000)

HINT

Confirm that no mechanical problem is present because this DTC can be output when either a damper link or damper is mechanically locked.

  1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Operate the recirculation/fresh switch. Enter the following menus: Body Electrical / Air Conditioner / Data List. Check the value(s) by referring to the table below. Body Electrical > Air Conditioner > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Air Inlet Damper Targ Pulse No. 1 blower damper servo sub-assembly target pulse Min.: 128 Max.: 383 Recirculation: 238 (pulse) Fresh: 206 (pulse) - Air Inlet Damper Actual Pulse No. 1 blower damper servo sub-assembly actual pulse Min.: 128 Max.: 383 Recirculation: 238 (pulse) Fresh: 206 (pulse) - Body Electrical > Air Conditioner > Data List Tester Display Air Inlet Damper Targ Pulse Air Inlet Damper Actual Pulse OK When the recirculation/fresh switch is operated, the actual pulse changes following the target pulse. Result Result Proceed to Target pulse changes but actual pulse does not change A Target pulse and actual pulse do not change B Actual pulse changes following the target pulse (When troubleshooting according to the DTC) C Actual pulse changes following the target pulse (When troubleshooting according to Problem Symptoms Table) D Result: 2 B REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 3 C See step 4 Result: 4 D PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 1 A See step 2
  2. REPLACE NO. 1 BLOWER DAMPER SERVO SUB-ASSEMBLY Replace the No. 1 blower damper servo sub-assembly. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S05244317162014102400000) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1442/42 is output A DTC B1442/42 is not output B Result: 2 B END (NO. 1 BLOWER DAMPER SERVO SUB-ASSEMBLY WAS DEFECTIVE) Result: 1 A See step 3
  3. REPLACE AIR CONDITIONING HARNESS ASSEMBLY Replace the air conditioning harness assembly. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the air conditioning harness assembly cannot be inspected while it is removed from the vehicle, replace the air conditioning harness assembly with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1442/42 is output A DTC B1442/42 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B END (AIR CONDITIONING HARNESS ASSEMBLY WAS DEFECTIVE)
  4. RECONFIRM DTC OUTPUT Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1442/42 is output A DTC B1442/42 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665529-S21853141262014102400000)

Note. Inspect the fuses for circuits related to this system before performing the following procedure.

  1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Air Conditioner / Active test. Check the operation by referring to the table below. Body Electrical > Air Conditioner > Active Test Tester Display Measurement Item Control Range Diagnostic Note Air Mix Servo Targ Pulse(D) No. 2 air conditioning radiator damper servo sub-assembly (driver side upper air mix) pulse Min.: 128 Max.: 383 Operates between 254 to 360 pulses Air Mix Servo Targ Pulse(P) No. 2 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix) pulse Min.: 128 Max.: 383 Operates between 152 to 258 pulses Air Outlet Servo Pulse (D) No. 3 air conditioning radiator damper servo sub-assembly pulse Min.: 128 Max.: 383 Operates between 140 to 254 pulses Air Inlet Damper Targ Pulse No. 1 blower damper servo sub-assembly pulse Min.: 128 Max.: 383 Operates between 206 to 238 pulses Cool A/M Servo Pulse(D) No. 5 air conditioning radiator damper servo sub-assembly (driver side lower air mix) pulse Min.: 128 Max.: 383 Operates between 254 to 360 pulses Cool A/M Servo Pulse(P) No. 4 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix) pulse Min.: 128 Max.: 383 Operates between 254 to 360 pulses DEF A/O Servo Pulse(D) No. 1 air conditioning radiator damper servo sub-assembly pulse Min.: 128 Max.: 383 Operates between 164 to 270 pulses Body Electrical > Air Conditioner > Active Test Tester Display Air Mix Servo Targ Pulse(D) Body Electrical > Air Conditioner > Active Test Tester Display Air Mix Servo Targ Pulse(P) Body Electrical > Air Conditioner > Active Test Tester Display Air Outlet Servo Pulse (D) Body Electrical > Air Conditioner > Active Test Tester Display Air Inlet Damper Targ Pulse Body Electrical > Air Conditioner > Active Test Tester Display Cool A/M Servo Pulse(D) Body Electrical > Air Conditioner > Active Test Tester Display Cool A/M Servo Pulse(P) Body Electrical > Air Conditioner > Active Test Tester Display DEF A/O Servo Pulse(D) OK Arm of the damper servo motor selected in the Active Test operates smoothly. According to the test result, proceed to the next step. Result Result Proceed to One of the damper servo motors is malfunctioning A All of the damper servo motors are malfunctioning B Result: 2 B See step 10 Result: 1 A See step 2
  2. SYSTEM CHECK According to the test result, proceed to the next step. Result Result Proceed to Only the No. 1 air conditioning radiator damper servo sub-assembly is malfunctioning A Only the No. 2 air conditioning radiator damper servo sub-assembly (driver side upper air mix) is malfunctioning B Only the No. 2 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix) is malfunctioning C Only the No. 5 air conditioning radiator damper servo sub-assembly (driver side lower air mix) is malfunctioning D Only the No. 4 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix) is malfunctioning E Only the No. 3 air conditioning radiator damper servo sub-assembly is malfunctioning F Only the No. 1 blower damper servo sub-assembly is malfunctioning G Result: 2 B See step 4 Result: 3 C See step 5 Result: 4 D See step 6 Result: 5 E See step 7 Result: 6 F See step 8 Result: 7 G See step 9 Result: 1 A See step 3
  3. REPLACE NO. 1 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY Replace the No. 1 air conditioning radiator damper servo sub-assembly. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1497/97 is not output A DTC B1497/97 is output B Result: 1 A END (NO. 1 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY WAS DEFECTIVE) Result: 2 B See step 10
  4. REPLACE NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (DRIVER SIDE UPPER AIR MIX) Replace the No. 2 air conditioning radiator damper servo sub-assembly (driver side upper air mix). Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1497/97 is not output A DTC B1497/97 is output B Result: 1 A END (NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (DRIVER SIDE UPPER AIR MIX) WAS DEFECTIVE) Result: 2 B See step 10
  5. REPLACE NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (FRONT PASSENGER SIDE UPPER AIR MIX) Replace the No. 2 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix). Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1497/97 is not output A DTC B1497/97 is output B Result: 1 A END (NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (FRONT PASSENGER SIDE UPPER AIR MIX) WAS DEFECTIVE) Result: 2 B See step 10
  6. REPLACE NO. 5 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (DRIVER SIDE LOWER AIR MIX) Replace the No. 5 air conditioning radiator damper servo sub-assembly (driver side lower air mix). Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1497/97 is not output A DTC B1497/97 is output B Result: 1 A END (NO. 5 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (DRIVER SIDE LOWER AIR MIX) WAS DEFECTIVE) Result: 2 B See step 10
  7. REPLACE NO. 4 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (FRONT PASSENGER SIDE LOWER AIR MIX) Replace the No. 4 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix). Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1497/97 is not output A DTC B1497/97 is output B Result: 1 A END (NO. 4 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (FRONT PASSENGER SIDE LOWER AIR MIX) WAS DEFECTIVE) Result: 2 B See step 10
  8. REPLACE NO. 3 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY Replace the No. 3 air conditioning radiator damper servo sub-assembly. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1497/97 is not output A DTC B1497/97 is output B Result: 1 A END (NO. 3 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY WAS DEFECTIVE) Result: 2 B See step 10
  9. REPLACE NO. 1 BLOWER DAMPER SERVO SUB-ASSEMBLY Replace the No. 1 blower damper servo sub-assembly. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S05244317162014102400000) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1497/97 is not output A DTC B1497/97 is output B Result: 1 A END (NO. 1 BLOWER DAMPER SERVO SUB-ASSEMBLY WAS DEFECTIVE) Result: 2 B See step 10
  10. REPLACE AIR CONDITIONING HARNESS ASSEMBLY Replace the air conditioning harness assembly. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the air conditioning harness assembly cannot be inspected while it is removed from the vehicle, replace the air conditioning harness assembly with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1497/97 is not output A DTC B1497/97 is output B Result: 1 A END (AIR CONDITIONING HARNESS ASSEMBLY WAS DEFECTIVE) Result: 2 B See step 11
  11. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Disconnect the K10 air conditioning amplifier assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition K10-6 (+B1) - Body ground Always 11 to 14 V Result Proceed to OK NG Result: 1 OK REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR

HINT

Confirm that no mechanical problem is present because this DTC can be output when either a damper link or damper is mechanically locked.

  1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Operate the driver side temperature adjustment switch. Enter the following menus: Body Electrical / Air Conditioner / Data List. Check the value(s) by referring to the table below. Body Electrical > Air Conditioner > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note COOL A/M Servo Targ Pls(D) No. 5 air conditioning radiator damper servo sub-assembly (driver side lower air mix) target pulse Min.: 128 Max.: 383 MAX. COLD: 254 (pulse) MAX. HOT: 360 (pulse) - COOL A/M Servo Actual Pulse(D) No. 5 air conditioning radiator damper servo sub-assembly (driver side lower air mix) actual pulse Min.: 128 Max.: 383 MAX. COLD: 254 (pulse) MAX. HOT: 360 (pulse) - Body Electrical > Air Conditioner > Data List Tester Display COOL A/M Servo Targ Pls(D) COOL A/M Servo Actual Pulse(D) OK When the driver side temperature adjustment switch is turned from MAX COLD to MAX HOT, the actual pulse changes following the target pulse. Result Result Proceed to Target pulse changes but actual pulse does not change A Target pulse and actual pulse do not change B Actual pulse changes following the target pulse (When troubleshooting according to the DTC) C Actual pulse changes following the target pulse (When troubleshooting according to Problem Symptoms Table) D Result: 2 B REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 3 C See step 4 Result: 4 D PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 1 A See step 2
  2. REPLACE NO. 5 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (DRIVER SIDE LOWER AIR MIX) Replace the No. 5 air conditioning radiator damper servo sub-assembly (driver side lower air mix). Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1453/53 is output A DTC B1453/53 is not output B Result: 2 B END (NO. 5 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (DRIVER SIDE LOWER AIR MIX) WAS DEFECTIVE) Result: 1 A See step 3
  3. REPLACE AIR CONDITIONING HARNESS ASSEMBLY Replace the air conditioning harness assembly. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the air conditioning harness assembly cannot be inspected while it is removed from the vehicle, replace the air conditioning harness assembly with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1453/53 is output A DTC B1453/53 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B END (AIR CONDITIONING HARNESS ASSEMBLY WAS DEFECTIVE)
  4. RECONFIRM DTC OUTPUT Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1453/53 is output A DTC B1453/53 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665529-S21853141262014102400000)

HINT

Confirm that no mechanical problem is present because this DTC can be output when either a damper link or damper is mechanically locked.

  1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Operate the front passenger side temperature adjustment switch. Enter the following menus: Body Electrical / Air Conditioner / Data List. Check the value(s) by referring to the table below. Body Electrical > Air Conditioner > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note COOL A/M Servo Targ Pls(P) No. 4 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix) target pulse Min.: 128 Max.: 383 MAX. COLD: 254 (pulse) MAX. HOT: 360 (pulse) - COOL A/M Servo Actual Pulse(P) No. 4 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix) actual pulse Min.: 128 Max.: 383 MAX. COLD: 254 (pulse) MAX. HOT: 360 (pulse) - Body Electrical > Air Conditioner > Data List Tester Display COOL A/M Servo Targ Pls(P) COOL A/M Servo Actual Pulse(P) OK When the front passenger side temperature adjustment switch is turned from MAX COLD to MAX HOT, the actual pulse changes following the target pulse. Result Result Proceed to Target pulse changes but actual pulse does not change A Target pulse and actual pulse do not change B Actual pulse changes following the target pulse (When troubleshooting according to the DTC) C Actual pulse changes following the target pulse (When troubleshooting according to Problem Symptoms Table) D Result: 2 B REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 3 C See step 4 Result: 4 D PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 1 A See step 2
  2. REPLACE NO. 4 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (FRONT PASSENGER SIDE LOWER AIR MIX) Replace the No. 4 air conditioning radiator damper servo sub-assembly (front passenger side lower air mix). Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1454/54 is output A DTC B1454/54 is not output B Result: 2 B END (NO. 4 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (FRONT PASSENGER SIDE LOWER AIR MIX) WAS DEFECTIVE) Result: 1 A See step 3
  3. REPLACE AIR CONDITIONING HARNESS ASSEMBLY Replace the air conditioning harness assembly. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the air conditioning harness assembly cannot be inspected while it is removed from the vehicle, replace the air conditioning harness assembly with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1454/54 is output A DTC B1454/54 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B END (AIR CONDITIONING HARNESS ASSEMBLY WAS DEFECTIVE)
  4. RECONFIRM DTC OUTPUT Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1454/54 is output A DTC B1454/54 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665529-S21853141262014102400000)

HINT

Confirm that no mechanical problem is present because this DTC can be output when either a damper link or damper is mechanically locked.

  1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Operate the mode switch. Enter the following menus: Body Electrical / Air Conditioner / Data List. Check the value(s) by referring to the table below. Body Electrical > Air Conditioner > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note A/O Damper DEF Pos(D Side) No. 1 air conditioning radiator damper servo sub-assembly target pulse Min.: 128 Max.: 383 FACE1: 164 (pulse) FACE2: 164 (pulse) FACE: 164 (pulse) B/L (manual mode): 164 (pulse) B/L (automatic mode): 164 to 180 (pulse) B/L2: 164 (pulse) FOOT-D: 230 (pulse) FOOT-R: 176 (pulse) FOOT (manual mode): 176 (pulse) FOOT (automatic mode): 176 to 186 (pulse) FOOT/DEF: 270 (pulse) DEF: 270 (pulse) - A/O Damper DEF Actual Pos(D) No. 1 air conditioning radiator damper servo sub-assembly actual pulse Min.: 128 Max.: 383 FACE1: 164 (pulse) FACE2: 164 (pulse) FACE: 164 (pulse) B/L (manual mode): 164 (pulse) B/L (automatic mode): 164 to 180 (pulse) B/L2: 164 (pulse) FOOT-D: 230 (pulse) FOOT-R: 176 (pulse) FOOT (manual mode): 176 (pulse) FOOT (automatic mode): 176 to 186 (pulse) FOOT/DEF: 270 (pulse) DEF: 270 (pulse) - Body Electrical > Air Conditioner > Data List Tester Display A/O Damper DEF Pos(D Side) A/O Damper DEF Actual Pos(D) OK When the mode switch is operated, the actual pulse changes following the target pulse. Result Result Proceed to Target pulse changes but actual pulse does not change A Target pulse and actual pulse do not change B Actual pulse changes following the target pulse (When troubleshooting according to the DTC) C Actual pulse changes following the target pulse (When troubleshooting according to Problem Symptoms Table) D Result: 2 B REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 3 C See step 4 Result: 4 D PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 1 A See step 2
  2. REPLACE NO. 1 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY Replace the No. 1 air conditioning radiator damper servo sub-assembly. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1455/55 is output A DTC B1455/55 is not output B Result: 2 B END (NO. 1 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY WAS DEFECTIVE) Result: 1 A See step 3
  3. REPLACE AIR CONDITIONING HARNESS ASSEMBLY Replace the air conditioning harness assembly. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the air conditioning harness assembly cannot be inspected while it is removed from the vehicle, replace the air conditioning harness assembly with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1455/55 is output A DTC B1455/55 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B END (AIR CONDITIONING HARNESS ASSEMBLY WAS DEFECTIVE)
  4. RECONFIRM DTC OUTPUT Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1455/55 is output A DTC B1455/55 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665529-S21853141262014102400000)
  1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Air Conditioner / Data List. Check the value(s) by referring to the table below. Body Electrical > Air Conditioner > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Ambient Temp Sensor Thermistor assembly Min.: -23.30°C (-9.94°F) Max.: 65.95°C (150.71°F) Actual ambient temperature displayed - Body Electrical > Air Conditioner > Data List Tester Display Ambient Temp Sensor OK The display is as specified in the normal condition column. Result Proceed to OK NG Result: 1 OK REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 NG See step 2
  2. INSPECT THERMISTOR ASSEMBLY Remove the thermistor assembly. *a Component without harness connected (Thermistor Assembly) *b Sensing Portion *c Resistance (kohms) *d Temperature (°C (°F)) *e Allowable Range Refer to «REMOVAL [04/2013 - ]»(ref-665718-S04357644892014102400000) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 (+) - 2 (-) 10°C (50°F) 3.00 to 3.73 kohms 15°C (59°F) 2.45 to 2.88 kohms 20°C (68°F) 1.95 to 2.30 kohms 25°C (77°F) 1.60 to 1.80 kohms 30°C (86°F) 1.28 to 1.47 kohms 35°C (95°F) 1.00 to 1.22 kohms 40°C (104°F) 0.80 to 1.00 kohms 45°C (113°F) 0.65 to 0.85 kohms 50°C (122°F) 0.50 to 0.70 kohms 55°C (131°F) 0.44 to 0.60 kohms 60°C (140°F) 0.36 to 0.50 kohms NOTE: Hold the sensor only by its connector. Touching the sensing portion may change the resistance value. When measuring, the sensor temperature must be the same as the ambient temperature. HINT: As the temperature increases, the resistance decreases (see the graph). Result Proceed to OK NG Result: 2 NG REPLACE THERMISTOR ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S04357644892014102400000) Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (THERMISTOR ASSEMBLY - AIR CONDITIONING AMPLIFIER ASSEMBLY) Disconnect the K11 air conditioning amplifier assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K11-10 (TAM) - B6-1 (+) Always Below 1 ohms K11-32 (SG-2) - B6-2 (-) Always Below 1 ohms K11-10 (TAM) - Body ground Always 10 kohms or higher K11-32 (SG-2) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 1 OK REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR
  1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Air Conditioner / Data List. Check the value(s) by referring to the table below. Body Electrical > Air Conditioner > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Evaporator Fin Thermistor No. 1 cooler thermistor Min.: -29.70°C (-21.46°F) Max.: 59.55°C (139.19°F) Actual evaporator temperature displayed - Body Electrical > Air Conditioner > Data List Tester Display Evaporator Fin Thermistor OK The display is as specified in the normal condition column. Result Result Proceed to NG A OK (When troubleshooting according to Problem Symptoms Table) B OK (When troubleshooting according to the DTC) C Result: 2 B PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 3 C REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 1 A See step 2
  2. INSPECT NO. 1 COOLER THERMISTOR Remove the No. 1 cooler thermistor. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S20732874042014102400000) *a Component without harness connected (No. 1 Cooler Thermistor) *b Sensing Portion *c Resistance (kohms) *d Temperature (°C (°F)) *e Allowable Range - - Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 1 - 2 -10°C (14°F) 7.30 to 9.10 kohms -5°C (23°F) 5.65 to 6.95 kohms 0°C (32°F) 4.40 to 5.35 kohms 5°C (41°F) 3.40 to 4.15 kohms 10°C (50°F) 2.70 to 3.25 kohms 15°C (59°F) 2.14 to 2.58 kohms 20°C (68°F) 1.71 to 2.05 kohms 25°C (77°F) 1.38 to 1.64 kohms 30°C (86°F) 1.11 to 1.32 kohms NOTE: Hold the sensor only by its connector. Touching the sensing portion may change the resistance value. When measuring, the sensor temperature must be the same as the ambient temperature. HINT: As the temperature increases, the resistance decreases (see the graph). Result Proceed to OK NG Result: 2 NG REPLACE NO. 1 COOLER THERMISTOR. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S20732874042014102400000) Result: 1 OK See step 3
  3. INSPECT AIR CONDITIONING HARNESS ASSEMBLY Remove the air conditioning harness assembly. *a Front view of wire harness connector (to Air Conditioning Amplifier Assembly) Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition z1-11 (TEA) - 1 Always Below 1 ohms z1-12 (SGA) - 2 Always Below 1 ohms *a Front view of wire harness connector (to No. 1 Cooler Thermistor) Result Proceed to OK NG Result: 1 OK REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 NG REPLACE AIR CONDITIONING HARNESS ASSEMBLY. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000)

Note. ECM malfunctions can affect the storage of this DTC. Therefore, check all EFI system DTCs and confirm that the system is normal before performing the following inspection. for 2GR-FSE: Refer to DTC CHECK / CLEAR [04/2013 - ] for 4GR-FSE: Refer to DTC CHECK / CLEAR [04/2013 - ] Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Scheme 124

Scheme 124: PROCEDURE
Scheme 124: PROCEDURE

Scheme 125

Scheme 125
Scheme 125
  1. CHECK CAN COMMUNICATION SYSTEM Using the Techstream, check if the CAN communication system is functioning normally. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665785-S15342612202014102400000) Result Result Proceed to CAN communication system DTCs are not output A CAN communication system DTCs are output B Result: 2 B GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665785-S15342612202014102400000) Result: 1 A See step 2
  2. PERFORM ACTIVE TEST USING TECHSTREAM Disconnect the magnetic clutch assembly connector. Install SST to the connector on the magnetic clutch relay side. SST: 09843-18040 Connect the Techstream to the DLC3. Start the engine. Turn the Techstream on. Enter the following menus: Body Electrical / Air Conditioner / Active Test. Body Electrical > Air Conditioner > Active Test Tester Display Measurement Item Control Range Diagnostic Note Magnetic Clutch Relay Air conditioning system operation OFF, ON - Measure the voltage according to the value(s) in the table below. *a Front view of wire harness connector (to Magnetic Clutch Assembly) Standard Voltage Tester Connection Condition Specified Condition 1 - Body ground Engine is running Active Test above is being performed 11 to 14 V HINT: When performing the Active Test, voltage between 11 and 14 V is output for approximately 3 seconds. Result Proceed to OK NG Result: 2 NG GO TO AIR CONDITIONING COMPRESSOR MAGNETIC CLUTCH CIRCUIT. Refer to «Air Conditioning Compressor Magnetic Clutch Circuit [04/2013 - ]»(ref-665827-S00277364492014102400000) Result: 1 OK See step 3
  3. INSPECT MAGNETIC CLUTCH ASSEMBLY Connect the magnetic clutch assembly connector. Disconnect the F65 cooler compressor assembly connector. (for 2WD) Disconnect the F69 cooler compressor assembly connector. (for AWD) Measure the resistance according to the value(s) in the table below. *a Component without harness connected (Magnetic Clutch Assembly (for 2WD)) *b Component without harness connected (Magnetic Clutch Assembly (for AWD)) Standard Resistance FOR 2WD Tester Connection Condition Specified Condition F65-3 (MG+) - Body ground 20°C (68°F) 3.8 to 4.2 ohms FOR AWD Tester Connection Condition Specified Condition F69-1 (MG+) - Body ground 20°C (68°F) 3.8 to 4.2 ohms When connector terminal F65-3 (MG+)*1 or F69-1 (MG+)*2 is connected to a positive (+) battery terminal, check that the following occurs: 1) the magnetic clutch operating sound can be heard, and 2) the magnetic clutch hub and rotor lock. *1: for 2WD *2: for AWD Result Proceed to OK NG Result: 2 NG REPLACE MAGNETIC CLUTCH ASSEMBLY for 2WD: Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S32142006292014102400000) for AWD: Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S13518481162014102400000) Result: 1 OK See step 4
  4. INSPECT COOLER COMPRESSOR ASSEMBLY Measure the resistance according to the value(s) in the table below. *a Component without harness connected (Cooler Compressor Assembly (for 2WD)) *b Component without harness connected (Cooler Compressor Assembly (for AWD)) Standard Resistance FOR 2WD Tester Connection Condition Specified Condition F65-1 (SSR+) - F65-2 (SSR-) 20°C (68°F) 160 to 320 ohms FOR AWD Tester Connection Condition Specified Condition F69-2 (SSR+) - F69-5 (SSR-) 20°C (68°F) 160 to 320 ohms Result Proceed to OK NG Result: 2 NG REPLACE COOLER COMPRESSOR ASSEMBLY for 2WD: Refer to «REMOVAL [04/2013 - ]»(ref-665718-S37916415182014102400000) for AWD: Refer to «REMOVAL [04/2013 - ]»(ref-665718-S30893690972014102400000) Result: 1 OK See step 5
  5. CHECK WIRE HARNESS AND CONNECTOR (COOLER COMPRESSOR ASSEMBLY - AIR CONDITIONING AMPLIFIER ASSEMBLY) Disconnect the K11 air conditioning amplifier assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance FOR 2WD Tester Connection Condition Specified Condition F65-1 (SSR+) - K11-30 (LOCK) Always Below 1 ohms F65-2 (SSR-) - K11-32 (SG-2) Always Below 1 ohms K11-30 (LOCK) - Body ground Always 10 kohms or higher K11-32 (SG-2) - Body ground Always 10 kohms or higher FOR AWD Tester Connection Condition Specified Condition F69-2 (SSR+) - K11-30 (LOCK) Always Below 1 ohms F69-5 (SSR-) - K11-32 (SG-2) Always Below 1 ohms K11-30 (LOCK) - Body ground Always 10 kohms or higher K11-32 (SG-2) - Body ground Always 10 kohms or higher Result Result Proceed to NG A OK (When troubleshooting according to Problem Symptoms Table) B OK (When troubleshooting according to the DTC) C Result: 1 A REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 2 B PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 3 C REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000)

HINT

If DTC B1423/23 and B14B8 are output at the same time, troubleshoot for DTC B1423/23 first.

  1. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) Disconnect the B5 air conditioner pressure sensor connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition B5-3 (+) - Body ground Engine switch on (IG) 4.75 to 5.25 V Result Proceed to OK NG Result: 2 NG See step 18 Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (GROUND CIRCUIT) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B5-1 (-) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG See step 17 Result: 1 OK See step 3
  3. INSPECT AIR CONDITIONER PRESSURE SENSOR (SENSOR SIGNAL CIRCUIT) Reconnect the B5 air conditioner pressure sensor connector. Remove the air conditioning amplifier assembly with the connectors still connected. Measure the voltage according to the value(s) in the table below. *a Component with harness connected (Air Conditioning Amplifier Assembly) Standard Voltage Tester Connection Condition Specified Condition K11-9 (PRE) - Body ground Engine switch on (IG) (A/C switch: Off) 0.74 to 4.71 V HINT: If the measured voltage is not within the normal range, there may be a malfunction in the air conditioning amplifier assembly, air conditioner pressure sensor, or wire harness. It is also possible that the amount of refrigerant may not be appropriate. Result Proceed to OK NG Result: 2 NG See step 11 Result: 1 OK See step 4
  4. INSPECT AIR CONDITIONER PRESSURE SENSOR (SENSOR SIGNAL CIRCUIT) Measure the voltage when the following conditions are met. Item Condition Vehicle doors Fully open Temperature setting MAX COLD Blower speed HI A/C switch On Recirculation/fresh switch RECIRCULATION Interior temperature 25 to 35°C (77 to 95°F) Engine speed 2000 rpm NOTE: If refrigerant pressure on the high pressure side becomes extremely high during the inspection (if the voltage exceeds 4.71 V), the fail-safe function stops compressor operation. Therefore, measure the voltage before the fail-safe operation. It is necessary to measure the voltage for a certain amount of time (approximately 10 minutes) because the malfunction may recur after a while. HINT: When the outside air temperature is low (below -1.5°C (29.3°F)), the compressor stops due to operation of the thermistor assembly and the No. 1 cooler thermistor to prevent the evaporator from freezing. In this case, perform the inspection in a warm indoor environment. Measure the voltage according to the value(s) in the table below. *a Component with harness connected (Air Conditioning Amplifier Assembly) Standard Voltage Tester Connection Condition Specified Condition K11-9 (PRE) - Body ground Engine switch on (IG) (A/C switch: On) 0.74 to 4.71 V Result Result Proceed to OK (When troubleshooting according to DTC) A OK (When troubleshooting according to Problem Symptoms Table) B NG C Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 3 C See step 5
  5. INSPECT COOLING FAN SYSTEM Check if the cooling fan operates normally. for 2GR-FSE: Refer to «ON-VEHICLE INSPECTION [04/2013 - ]»(ref-665784-S37532157712014102400000) for 4GR-FSE: Refer to «ON-VEHICLE INSPECTION [04/2013 - ]»(ref-665786-S41511341732014102400000) Result Proceed to OK NG Result: 2 NG GO TO COOLING FAN SYSTEM for 2GR-FSE: Refer to «ON-VEHICLE INSPECTION [04/2013 - ]»(ref-665784-S37532157712014102400000) for 4GR-FSE: Refer to «ON-VEHICLE INSPECTION [04/2013 - ]»(ref-665786-S41511341732014102400000) Result: 1 OK See step 6
  6. CHARGE SYSTEM WITH REFRIGERANT Use a refrigerant recovery unit to recover refrigerant. Evacuate the air conditioning system. Add an appropriate amount of refrigerant. Refer to «REPLACEMENT [04/2013 - ]»(ref-665718-S29281733902014102400000) HINT: If refrigerant is added and the system has not been properly evacuated (insufficient vacuum time), moisture in the air remaining in the system will freeze in the cooler expansion valve, blocking the flow on the high pressure side. Therefore, in order to confirm the problem, recover the refrigerant and properly evacuate the system. Add an appropriate amount of refrigerant, and check for the DTC. Result Proceed to NEXT Result: 1 NEXT See step 7
  7. RECHECK FOR DTC Recheck for the DTC when the following conditions are met. Item Condition Vehicle doors Fully open Temperature setting MAX COLD Blower speed HI A/C switch On Recirculation/fresh switch RECIRCULATION Interior temperature 25 to 35°C (77 to 95°F) Engine speed 2000 rpm Body Electrical > Air Conditioner > Trouble Codes NOTE: If refrigerant pressure on the high pressure side becomes high, the DTC will be stored. It is necessary to operate the air conditioning system for a certain amount of time (approximately 10 minutes) because the DTC may be stored after the air conditioning operates for a while. HINT: When the outside air temperature is low (below -1.5°C (29.3°F)), the compressor stops due to operation of the thermistor assembly and the No. 1 cooler thermistor to prevent the evaporator from freezing. In this case, perform the inspection in a warm indoor environment. If refrigerant is added and the system has not been properly evacuated (insufficient vacuum time), moisture in the air remaining in the system will freeze in the cooler expansion valve, blocking the flow on the high pressure side. Therefore, in order to confirm the problem, recover the refrigerant and properly evacuate the system. Add an appropriate amount of refrigerant, and check for the DTC. If the DTC is not output after this work, it indicates that the cooler dryer in the cooler condenser assembly is not able to absorb moisture in the refrigerant cycle. It is necessary to replace the cooler dryer in order to complete the repair. Result Result Proceed to DTC B1423/23 is output A DTC B1423/23 is not output B Result: 2 B REPLACE COOLER CONDENSER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S24417243172014102400000) Result: 1 A See step 8
  8. REPLACE COOLER EXPANSION VALVE Replace the cooler expansion valve with a new one. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Replace the cooler expansion valve with a new one because the cooler expansion valve is either stuck or clogged. Result Proceed to NEXT Result: 1 NEXT See step 9
  9. CHARGE SYSTEM WITH REFRIGERANT Use a refrigerant recovery unit to recover refrigerant. Evacuate the air conditioning system. Add an appropriate amount of refrigerant. Refer to «REPLACEMENT [04/2013 - ]»(ref-665718-S29281733902014102400000) HINT: If refrigerant is added and the system has not been properly evacuated (insufficient vacuum time), moisture in the air remaining in the system will freeze in the cooler expansion valve, blocking the flow on the high pressure side. Therefore, in order to confirm the problem, recover the refrigerant and properly evacuate the system. Add an appropriate amount of refrigerant, and check for the DTC. Result Proceed to NEXT Result: 1 NEXT See step 10
  10. RECHECK FOR DTC Recheck for the DTC when the following conditions are met. Item Condition Vehicle doors Fully open Temperature setting MAX COLD Blower speed HI A/C switch On Recirculation/fresh switch RECIRCULATION Interior temperature 25 to 35°C (77 to 95°F) Engine speed 2000 rpm Body Electrical > Air Conditioner > Trouble Codes NOTE: If refrigerant pressure on the high pressure side becomes high, the DTC will be stored. It is necessary to operate the air conditioning system for a certain amount of time (approximately 10 minutes) because the DTC may be stored after the air conditioning operates for a while. HINT: When the outside air temperature is low (below -1.5°C (29.3°F)), the compressor stops due to operation of the thermistor assembly and the No. 1 cooler thermistor to prevent the evaporator from freezing. In this case, perform the inspection in a warm indoor environment. If refrigerant pressure is not normal after replacing the cooler expansion valve with a new or known good one, the cooler condenser assembly or pipes may be clogged due to dirt, dust or other foreign matter. In this case, clean or replace the cooler condenser assembly or pipes. Result Result Proceed to DTC B1423/23 is not output A DTC B1423/23 is output B Result: 1 A END Result: 2 B CLEAN OR REPLACE COOLER CONDENSER ASSEMBLY OR PIPE
  11. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - AIR CONDITIONER PRESSURE SENSOR) Disconnect the B5 air conditioner pressure sensor connector. Disconnect the K11 air conditioning amplifier assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B5-2 (PR) - K11-9 (PRE) Always Below 1 ohms K11-9 (PRE) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 12
  12. INSPECT FOR AIR CONDITIONING SYSTEM LEAK Install a manifold gauge set. Recover the refrigerant from the air conditioning system using a refrigerant recovery unit. Evacuate the air conditioning system and check that vacuum can be maintained. OK Vacuum can be maintained in the air conditioning system. HINT: If vacuum cannot be maintained in the air conditioning system, refrigerant may be leaking from it. In this case, it is necessary to repair or replace the leaking part of the air conditioning system. Result Proceed to OK NG Result: 3 NG See step 16 Result: 1 OK See step 13
  13. CHARGE SYSTEM WITH REFRIGERANT Use a refrigerant recovery unit to recover refrigerant. Evacuate the air conditioning system. Add an appropriate amount of refrigerant. Refer to «REPLACEMENT [04/2013 - ]»(ref-665718-S29281733902014102400000) HINT: If refrigerant is added and the system has not been properly evacuated (insufficient vacuum time), moisture in the air remaining in the system will freeze in the cooler expansion valve, blocking the flow on the high pressure side. Therefore, in order to confirm the problem, recover the refrigerant and properly evacuate the system. Add an appropriate amount of refrigerant, and check for the DTC. Result Proceed to NEXT Result: 1 NEXT See step 14
  14. RECHECK FOR DTC Recheck for the DTC when the following conditions are met. Item Condition Vehicle doors Fully open Temperature setting MAX COLD Blower speed HI A/C switch On Recirculation/fresh switch RECIRCULATION Interior temperature 25 to 35°C (77 to 95°F) Engine speed 2000 rpm Body Electrical > Air Conditioner > Trouble Codes NOTE: If refrigerant pressure on the high pressure side becomes high, the DTC will be stored. It is necessary to operate the air conditioning system for a certain amount of time (approximately 10 minutes) because the DTC may be stored after the air conditioning operates for a while. HINT: When the outside air temperature is low (below -1.5°C (29.3°F)), the compressor stops due to operation of the thermistor assembly and the No. 1 cooler thermistor to prevent the evaporator from freezing. In this case, perform the inspection in a warm indoor environment. Result Result Proceed to DTC B1423/23 is output A DTC B1423/23 is not output B NOTE: If the DTC was set due to an insufficient or excessive amount of refrigerant, the problem may have been solved after performing the previous step. However, the root cause of insufficient refrigerant may be refrigerant leaks. The root cause of excessive refrigerant may be adding too much refrigerant when the level was insufficient. Therefore, identify and repair the area where refrigerant leaks from as necessary. Result: 2 B END Result: 1 A See step 15
  15. INSPECT AIR CONDITIONER PRESSURE SENSOR Install a manifold gauge set. Reconnect the B5 air conditioner pressure sensor connector. Turn the engine switch on (IG). Measure the voltage according to the value(s) in the table below. *a Component with harness connected (Air Conditioning Amplifier Assembly) Standard Voltage Tester Connection Condition Specified Condition K11-9 (PRE) - K11-32 (SG-2) Refrigerant pressure: Normal pressure (less than 3025 kPa (30.8 kgf/cm 2 , 439 psi) and more than 176 kPa (1.8 kgf/cm 2 , 26 psi)) 0.74 to 4.71 V Result Proceed to OK NG Result: 1 OK REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 NG REPLACE AIR CONDITIONER PRESSURE SENSOR. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S01487077742014102400000)
  16. REPAIR AIR CONDITIONING SYSTEM LEAK Identify the area where refrigerant leaks from. Refer to «REPLACEMENT [04/2013 - ]»(ref-665718-S29281733902014102400000) Repair the identified area of the air conditioning system. Evacuate the air conditioning system. Result Proceed to NEXT Result: 1 NEXT CHARGE SYSTEM WITH REFRIGERANT. Refer to «REPLACEMENT [04/2013 - ]»(ref-665718-S29281733902014102400000)
  17. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - AIR CONDITIONER PRESSURE SENSOR) Disconnect the K11 air conditioning amplifier assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B5-1 (-) - K11-32 (SG-2) Always Below 1 ohms K11-32 (SG-2) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 1 OK REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR
  18. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - AIR CONDITIONER PRESSURE SENSOR) Disconnect the K11 air conditioning amplifier assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition B5-3 (+) - K11-13 (S5-3) Always Below 1 ohms K11-13 (S5-3) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 1 OK REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR

HINT

Confirm that no mechanical problem is present because this DTC can be output when either a damper link or damper is mechanically locked.

  1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Operate the front passenger side temperature adjustment switch. Enter the following menus: Body Electrical / Air Conditioner / Data List. Check the value(s) by referring to the table below. Body Electrical > Air Conditioner > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Air Mix Servo Targ Pulse(P) No. 2 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix) target pulse Min.: 128 Max.: 383 MAX. COLD: 258 (pulse) MAX. HOT: 152 (pulse) - Air Mix Servo Actual Pulse(P) No. 2 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix) actual pulse Min.: 128 Max.: 383 MAX. COLD: 258 (pulse) MAX. HOT: 152 (pulse) - Body Electrical > Air Conditioner > Data List Tester Display Air Mix Servo Targ Pulse(P) Air Mix Servo Actual Pulse(P) OK When the front passenger side temperature adjustment switch is turned from MAX COLD to MAX HOT, the actual pulse changes following the target pulse. Result Result Proceed to Target pulse changes but actual pulse does not change A Target pulse and actual pulse do not change B Actual pulse changes following the target pulse (When troubleshooting according to the DTC) C Actual pulse changes following the target pulse (When troubleshooting according to Problem Symptoms Table) D Result: 2 B REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 3 C See step 4 Result: 4 D PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 1 A See step 2
  2. REPLACE NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (FRONT PASSENGER SIDE UPPER AIR MIX) Replace the No. 2 air conditioning radiator damper servo sub-assembly (front passenger side upper air mix). Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the servo motor cannot be inspected while it is removed from the vehicle, replace the servo motor with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1441/41 is output A DTC B1441/41 is not output B Result: 2 B END (NO. 2 AIR CONDITIONING RADIATOR DAMPER SERVO SUB-ASSEMBLY (FRONT PASSENGER SIDE UPPER AIR MIX) WAS DEFECTIVE) Result: 1 A See step 3
  3. REPLACE AIR CONDITIONING HARNESS ASSEMBLY Replace the air conditioning harness assembly. Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S09119252702014102400000) HINT: Since the air conditioning harness assembly cannot be inspected while it is removed from the vehicle, replace the air conditioning harness assembly with a new or known good one and check that the condition returns to normal. Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1441/41 is output A DTC B1441/41 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B END (AIR CONDITIONING HARNESS ASSEMBLY WAS DEFECTIVE)
  4. RECONFIRM DTC OUTPUT Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665545-S11556757862014102400000) Body Electrical > Air Conditioner > Trouble Codes Result Result Proceed to DTC B1441/41 is output A DTC B1441/41 is not output B Result: 1 A REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 B USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665529-S21853141262014102400000)

Note. Inspect the fuses for circuits related to this system before performing the following procedure.

Scheme 126

Scheme 126: PROCEDURE
Scheme 126: PROCEDURE
  1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Air Conditioner / Active Test. Check the operation by referring to the table below. Body Electrical > Air Conditioner > Active Test Tester Display Measurement Item Control Range Diagnostic Note Blower Motor Blower motor with fan sub-assembly Min.: 0, Max.: 31 - Body Electrical > Air Conditioner > Active Test Tester Display Blower Motor Result Result Proceed to OK A NG (Blower motor with fan sub-assembly does not operate) B NG (Blower motor with fan sub-assembly operates but does not change speed) C Result: 1 A PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 3 C See step 6 Result: 2 B See step 2
  2. CHECK HARNESS AND CONNECTOR (BLOWER MOTOR WITH FAN SUB-ASSEMBLY - BODY GROUND) Disconnect the A59 blower motor with fan sub-assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition A59-1 (GND) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (BLOWER MOTOR WITH FAN SUB-ASSEMBLY - BATTERY) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition A59-3 (+B) - Body ground Always 11 to 14 V Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - BLOWER MOTOR WITH FAN SUB-ASSEMBLY) Disconnect the K10 air conditioning amplifier assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K10-3 (BLW) - A59-2 (SI) Always Below 1 ohms K10-3 (BLW) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 5
  5. INSPECT BLOWER MOTOR WITH FAN SUB-ASSEMBLY Reconnect the A59 blower motor with fan sub-assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition K10-3 (BLW) - Body ground Always 4.75 to 5.25 V *a Front view of wire harness connector (to Air Conditioning Amplifier Assembly) Result Proceed to OK NG Result: 2 NG REPLACE BLOWER MOTOR WITH FAN SUB-ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S01195859872014102400000) Result: 1 OK See step 6
  6. INSPECT AIR CONDITIONING AMPLIFIER ASSEMBLY Reconnect the K10 air conditioning amplifier assembly connector. Turn the engine switch on (IG). Turn the blower switch on (LO). Measure the waveform between terminal K10-3 (BLW) of the air conditioning amplifier assembly and body ground. OK Waveform is similar to that shown in the illustration. HINT: The waveform varies with the blower speed. Item Content Tool setting 1 V/DIV., 500 μs/DIV. Vehicle condition Engine switch on (IG) Blower switch: LO *a Component with harness connected (Air Conditioning Amplifier Assembly) Result Proceed to OK NG Result: 1 OK REPLACE BLOWER MOTOR WITH FAN SUB-ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S01195859872014102400000) Result: 2 NG REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000)

Note. ECM malfunctions can affect the storage of this DTC. Therefore, check all EFI system DTCs and confirm that the system is normal before performing the following inspection. for 2GR-FSE: Refer to DTC CHECK / CLEAR [04/2013 - ] for 4GR-FSE: Refer to DTC CHECK / CLEAR [04/2013 - ] Inspect the fuses for circuits related to this system before performing the following inspection procedure.

  1. CHECK CAN COMMUNICATION SYSTEM Using the Techstream, check if the CAN communication system is functioning normally. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665785-S15342612202014102400000) Result Result Proceed to CAN communication system DTCs are not output A CAN communication system DTCs are output B Result: 2 B GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665785-S15342612202014102400000) Result: 1 A See step 2
  2. CHECK SEMICONDUCTOR PWR INTEGRATION ECU Using a voltmeter, check the signal reading of the semiconductor pwr integration ECU. Refer to «ON-VEHICLE INSPECTION [04/2013 - ]»(ref-665734-S13347105442014102400000) OK A normal signal reading is output. Result Proceed to OK NG Result: 2 NG CHECK SEMICONDUCTOR PWR INTEGRATION ECU (RESULT OF SIGNAL READING). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S38821131362014102400000) Result: 1 OK See step 3
  3. CHECK WIRE HARNESS AND CONNECTOR (SEMICONDUCTOR PWR INTEGRATION ECU - POWER SOURCE AND BODY GROUND) Remove the semiconductor pwr integration ECU from the No. 2 engine room relay block and No. 2 junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S38821131362014102400000) *a Component without semiconductor pwr integration ECU connected (No. 2 Engine Room Relay Block and No. 2 Junction Block Assembly) - - Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 2A-1 (ALT) - Body ground Always 11 to 14 V 2B-1 (BATT) - Body ground Always 11 to 14 V Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2D-14 (GND1) - Body ground Always Below 1 ohms 2G-5 (GND2) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. CHECK WIRE HARNESS AND CONNECTOR (SEMICONDUCTOR PWR INTEGRATION ECU - COOLER COMPRESSOR ASSEMBLY) Disconnect the F65 cooler compressor assembly connector. (for 2WD) Disconnect the F69 cooler compressor assembly connector. (for AWD) Measure the resistance according to the value(s) in the table below. Standard Resistance FOR 2WD Tester Connection Condition Specified Condition 2D-12 (L) - F65-3 (MG+) Always Below 1 ohms 2D-12 (L) - Body ground Always 10 kohms or higher FOR AWD Tester Connection Condition Specified Condition 2D-12 (L) - F69-1 (MG+) Always Below 1 ohms 2D-12 (L) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 5
  5. CHECK WIRE HARNESS AND CONNECTOR (SEMICONDUCTOR PWR INTEGRATION ECU - AIR CONDITIONING AMPLIFIER ASSEMBLY) Disconnect the K10 air conditioning amplifier assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2D-4 (-S) - K10-18 (MGC) Always Below 1 ohms 2D-4 (-S) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 6
  6. CHECK MAGNETIC CLUTCH ASSEMBLY Connect the magnetic clutch assembly connector. Measure the resistance according to the value(s) in the table below. *a Component without harness connected (Cooler Compressor Assembly (for 2WD)) *b Component without harness connected (Cooler Compressor Assembly (for AWD)) Standard Resistance FOR 2WD Tester Connection Condition Specified Condition F65-3 (MG+) - Body ground 20°C (68°F) 3.8 to 4.2 ohms FOR AWD Tester Connection Condition Specified Condition F69-1 (MG+) - Body ground 20°C (68°F) 3.8 to 4.2 ohms When connector terminal F65-3 (MG+)*1 or F69-1 (MG+)*2 is connected to a positive (+) battery terminal, check that the following occurs: 1) the magnetic clutch operating sound can be heard, and 2) the magnetic clutch hub and rotor lock. *1: for 2WD *2: for AWD Result Proceed to OK NG Result: 1 OK PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 2 NG REPLACE MAGNETIC CLUTCH ASSEMBLY for 2WD: Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S32142006292014102400000) for AWD: Refer to «DISASSEMBLY [04/2013 - ]»(ref-665718-S13518481162014102400000)

Note. If the battery voltage is low, the PTC heater may not operate. When "Operation of Electrical Items Restricted." is displayed on the multi-information display in the combination meter assembly, inspect the battery, referring to On-vehicle Inspection for the charging system. for 2GR-FSE: Refer to ON-VEHICLE INSPECTION [04/2013 - ] for 4GR-FSE: Refer to ON-VEHICLE INSPECTION [04/2013 - ] If the battery voltage is low, the PTC heater may not operate. When "Operation of Electrical Items Restricted." is not displayed on the multi-information display in the combination meter assembly, check the Data List item "Battery Control Count (Body ECU)". Refer to DATA LIST / ACTIVE TEST [04/2013 - ] Inspect the fuses for circuits related to this system before performing the following procedure.

Scheme 127

Scheme 127: PROCEDURE
Scheme 127: PROCEDURE
  1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Air Conditioner / Active Test. Check the operation by referring to the table below. Body Electrical > Air Conditioner > Active Test Tester Display Measurement Item Control Range Diagnostic Note Heater Active Level Quick heater assembly Min.: 0, Max.: 2 - Body Electrical > Air Conditioner > Active Test Tester Display Heater Active Level OK Heater Active Level changes normally. Result Proceed to OK NG Result: 2 NG PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 1 OK See step 2
  2. INSPECT PTC HEATER RELAY Remove the PTC heater relays. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 3 - 5 Battery voltage is not applied between terminals 1 and 2 10 kohms or higher 3 - 5 Battery voltage is applied between terminals 1 and 2 Below 1 ohms *a Component without harness connected (PTC Heater Relay) Result Proceed to OK NG Result: 2 NG REPLACE PTC HEATER RELAY. Refer to «PARTS LOCATION [04/2013 - ]»(ref-665545-S03704454852014102400000) Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (PTC HEATER RELAY - POWER SOURCE) Measure the voltage according to the value(s) in the table below. Standard Voltage PTC HTR NO. 1 Tester Connection Condition Specified Condition Relay terminal 5 - Body ground Always 11 to 14 V Relay terminal 1 - Body ground Engine switch off Below 1 V Relay terminal 1 - Body ground Engine switch on (IG) 11 to 14 V Standard Voltage PTC HTR NO. 2 Tester Connection Condition Specified Condition Relay terminal 5 - Body ground Always 11 to 14 V Relay terminal 1 - Body ground Engine switch off Below 1 V Relay terminal 1 - Body ground Engine switch on (IG) 11 to 14 V Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. CHECK HARNESS AND CONNECTOR (PTC HEATER RELAY - AIR CONDITIONING AMPLIFIER ASSEMBLY) Disconnect the K10 air conditioning amplifier assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance PTC HTR NO. 1 Tester Connection Condition Specified Condition Relay terminal 2 - K10-8 (PTC1) Always Below 1 ohms Relay terminal 2 - Body ground Always 10 kohms or higher Standard Resistance PTC HTR NO. 2 Tester Connection Condition Specified Condition Relay terminal 2 - K10-26 (PTC2) Always Below 1 ohms Relay terminal 2 - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 5
  5. CHECK HARNESS AND CONNECTOR (PTC HEATER RELAY - QUICK HEATER ASSEMBLY AND BODY GROUND) Disconnect the K13 and K14 quick heater assembly connectors. Measure the resistance according to the value(s) in the table below. Standard Resistance PTC HTR NO. 1 Tester Connection Condition Specified Condition Relay terminal 3 - K13-2 (B) Always Below 1 ohms K13-1 (E) - Body ground Always Below 1 ohms K13-2 (B) - Body ground Always 10 kohms or higher Standard Resistance PTC HTR NO. 2 Tester Connection Condition Specified Condition Relay terminal 3 - K14-2 (B) Always Below 1 ohms K14-1 (E) - Body ground Always Below 1 ohms K14-2 (B) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 6
  6. INSPECT QUICK HEATER ASSEMBLY Remove the quick heater assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S06214649172014102400000) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K13-1 (E) - K13-2 (B) Always Below 1 ohms K14-1 (E) - K14-2 (B) Always Below 1 ohms K13-1 (E) - K14-1 (E) Always 10 kohms or higher *a Component without harness connected (Quick Heater Assembly) Result Proceed to OK NG Result: 1 OK REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 NG REPLACE QUICK HEATER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S06214649172014102400000)
  1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Air Conditioner / Data List. Check the values by referring to the table below. Body Electrical > Air Conditioner > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note ECO Switch Combination switch assembly (ECO mode switch) OFF or ON ON: Combination switch assembly (ECO mode switch) being turned and held at ECO position OFF: Combination switch assembly (ECO mode switch) not turned - Body Electrical > Air Conditioner > Data List Tester Display ECO Switch OK Combination switch assembly (ECO mode switch) condition displayed on the Techstream changes with the actual switch operation. Result Proceed to OK NG Result: 1 OK PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 2 NG See step 2
  2. INSPECT COMBINATION SWITCH ASSEMBLY (ECO MODE SWITCH) Remove the combination switch assembly (ECO mode switch). Refer to «REMOVAL [04/2013 - ]»(ref-665725-S36336213082014102400000) Measure the resistance according to the value(s) in the table below. *a Component without harness connected (Combination Switch Assembly (ECO Mode Switch)) Standard Resistance Tester Connection Condition Specified Condition 11 (ECO) - 16 (E) Combination switch assembly (ECO mode switch) not turned 10 kohms or higher 11 (ECO) - 16 (E) Combination switch assembly (ECO mode switch) being turned and held at ECO position Below 50 ohms Result Proceed to OK NG Result: 2 NG REPLACE COMBINATION SWITCH ASSEMBLY (ECO MODE SWITCH). Refer to «REMOVAL [04/2013 - ]»(ref-665725-S36336213082014102400000) Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ASSEMBLY (ECO MODE SWITCH) - AIR CONDITIONING AMPLIFIER ASSEMBLY) Disconnect the K10 air conditioning amplifier assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K10-29 (ECOS) - K81-11 (ECO) Always Below 1 ohms K10-29 (ECOS) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ASSEMBLY (ECO MODE SWITCH) - BODY GROUND) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K81-16 (E) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 1 OK REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665718-S03696019692014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR

Note. Inspect the fuses for circuits related to this system before performing the following procedure.

  1. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - IG POWER SOURCE) Disconnect the K10 air conditioning amplifier assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition K10-5 (IG+) - Body ground Engine switch off Below 1 V K10-5 (IG+) - Body ground Engine switch on (IG) 11 to 14 V Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - BODY GROUND) Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K10-1 (GND) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 1 OK PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR

Note. Inspect the fuses for circuits related to this system before performing the following procedure.

  1. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - POWER SOURCE) Disconnect the K10 air conditioning amplifier assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition K10-6 (+B1) - Body ground Always 11 to 14 V Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER ASSEMBLY - BODY GROUND) Disconnect the K10 air conditioning amplifier assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K10-1 (GND) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 1 OK PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665545-S02258281842014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR

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