Air Conditioning: Diagnosis Scion xB II

HOW TO PROCEED WITH TROUBLESHOOTING

HINT

1. Use the following procedures to troubleshoot the air conditioning system.
2. *: Use an intelligent tester or Techstream.

1. VEHICLE BROUGHT TO WORKSHOP
2. INSPECT BATTERY VOLTAGE Inspect the battery voltage. Standard voltage: 11 to 14 V If the voltage is below 11V, recharge or replace the battery before proceeding.
3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* Use an intelligent tester or Techstream to check if the CAN Communication System is functioning normally. Result RESULT DESCRIPTION Result Proceed to CAN DTC is not output A CAN DTC is output B B: Go to CAN COMMUNICATION SYSTEM (See «CAN COMMUNICATION SYSTEM»(ref-289774-S11182099402008070700000) ) A: Go to Next Step
4. CHECK FOR DTC* Check for DTCs and note any codes that are output. HINT: Refer to the «DTC CHECK / CLEAR»(ref-289743-S06545072042008070700000) . Delete the DTCs. Recheck for DTCs. Based on the DTCs output above, try to force output of the A/C system DTC by simulating the operation indicated by the DTC. Result RESULT DESCRIPTION Result Proceed to DTC is not output A DTC is output B B: Go to step 7 A: Go to Next Step
5. PROBLEM SYMPTOMS TABLE Refer to the «PROBLEM SYMPTOMS TABLE»(ref-289743-S13413194042008070700000) . Result RESULT DESCRIPTION Result Proceed to Fault is not listed in problem symptoms table A Fault is listed in problem symptoms table B B: Go to step 7 A: Go to Next Step
6. OVERALL ANALYSIS AND TROUBLESHOOTING* See «DATA LIST / ACTIVE TEST»(ref-289743-S11290848802008070700000) See «TERMINALS OF ECU»(ref-289743-S11912334092008070700000) ON-VEHICLE INSPECTION INSPECTION
7. ADJUST, REPAIR OR REPLACE NEXT : END

PROBLEM SYMPTOMS TABLE

HINT

Use the table below to help determine the causes of the problem symptom. The potential cases of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

AIR CONDITIONING SYSTEM

AIR CONDITIONING SYSTEM

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1. A/C AMPLIFIER HINT: Check from the rear of the connector while it is connected to the A/C amplifier. A/C AMPLIFIER Terminal No. (Symbols) Wiring Color Description Condition Specified Condition C8-1 (S5-3) - C8-4 (SG-2) B - G Power supply for A/C pressure sensor Ignition switch ON 4.5 to 5.5 V C8-2 (CANH) - C8-3 (CANL) V - W CAN communication system CAN communication circuit Pulse generation C8-4 (SG-2) - Body ground G - Body ground Ground for A/C pressure sensor Always Below 1 V C8-6 (PRE) - C8-4 (SG-2) L - G A/C pressure sensor signal Start engine Operate A/C system Refrigerant pressure: Abnormal pressure (more than 3140 kPa (32.0 kgf/cm 2 , 455 psi)) 4.74 V or higher C8-6 (PRE) - C8-4 (SG-2) L - G A/C pressure sensor signal Start engine Operate A/C system Refrigerant pressure: Abnormal pressure (less than 196 kPa (2.0 kgf/cm 2 , 28 psi)) Below 0.76 V C8-6 (PRE) - C8-4 (SG-2) L - G A/C pressure sensor signal Start engine Operate A/C system Refrigerant pressure: Normal pressure (less than 3140 kPa (32.0 kgf/cm 2 , 455 psi) and more than 196 kPa (2.0 kgf/cm 2 , 28 psi)) 0.76 to 4.74 V C8-7 (SOL+) - C8-12 (GND) LG - W-B A/C compressor operation signal Engine is running A/C switch: ON Blower switch: LO Pulse generation (See a waveform 1) C8-8 (IG+) - C8-12 (GND) Y - W-B Power source (IG) Ignition switch OFF Below 1 V C8-8 (IG+) - C8-12 (GND) Y - W-B Power source (IG) Ignition switch ON 11 to 14 V C8-9 (SBLW) - C8-12 (GND) O - W-B Blower motor speed control signal Ignition switch ON Blower switch: OFF 11 to 14 V C8-9 (SBLW) - C8-12 (GND) O - W-B Blower motor speed control signal Ignition switch ON Blower switch: LO Below 1 V C8-10 (TE) - C8-11 (SG-3) W - P A/C evaporator temperature sensor signal Ignition switch ON Evaporator temperature at 01°C (32°F) 1.7 to 2.0 V C8-10 (TE) - C8-11 (SG-3) W - P A/C evaporator temperature sensor signal Ignition switch ON Evaporator temperature at 15°C (59°F) 1.0 to 1.3 V C8-11 (SG-3) - Body ground P - Body ground Ground for A/C evaporator temperature sensor Always Below 1 V C8-12 (GND) - Body ground W-B - Body ground Ground for main power supply Always Below 1 V C8-15 (A/C) - C8-12 (GND) V - W-B A/C switch signal Ignition switch ON A/C switch: OFF Below 1 V C8-15 (A/C) - C8-12 (GND) V - W-B A/C switch signal Ignition switch ON A/C switch: ON 11 to 14 V C8-16 (LED) - C8-12 (GND) GR - W-B A/C switch indicator light signal Ignition switch ON A/C switch: OFF Blower switch: ON 11 to 14 V C8-16 (LED) - C8-12 (GND) GR - W-B A/C switch indicator light signal Ignition switch ON A/C switch: ON Blower switch: ON Below 4 V Waveform 1: WAVEFORM 1 REFERENCE CHART Item Contents Terminal No. (Symbols) C8-7 (SOL+) - C8-12 (GND) Tool Setting 5 V/DIV., 500 μs/DIV. Vehicle Condition Engine is running A/C switch: ON Blower switch: LO

DIAGNOSIS SYSTEM

1. CHECK DLC3 Check the DLC3 (See «HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS»(ref-289756-S19835601092008070700000) )

DTC CHECK/CLEAR

1. CHECK DTC Connect an intelligent tester or Techstream to the DLC3. Turn the ignition switch to ON. Turn the tester on. Enter the following menus: Intelligent tester - Select: DIAGNOSIS / OBD/ MOBD / AIR CONDITIONER / DTC INFO / Techstream - Select: Body Electrical / Air conditioner / Trouble Codes / Read the DTCs.
2. CLEAR DTC Connect an intelligent tester or Techstream to the DLC3. Turn the ignition switch to ON. Turn the tester on. Enter the following menus: Intelligent tester - Select: DIAGNOSIS / OBD/ MOBD / AIR CONDITIONER / DTC INFO / Techstream - Select: Body Electrical / Air conditioner / Trouble Codes / Erase the DTCs.

DATA LIST / ACTIVE TEST

1. DATA LIST HINT: Using an intelligent tester or Techstream to read the Data List allows the values or states of switches, sensor, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may by discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time. NOTE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. Warm up the engine. Turn the ignition switch to OFF. Connect the intelligent tester or Techstream to the DLC3. Turn the ignition switch to ON. Turn the tester on. Enter the following menus: Intelligent tester - Select: DIAGNOSIS / OBD/ MOBD / AIR CONDITIONER / DATA LIST / ALL / Techstream - Select: Body Electrical / Air Conditioner / Data List / According to the display on tester, read the "Data List". Intelligent tester Air Conditioner: DATA LIST - AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note AMBI TEMP SENS Ambient temperature sensor / Min.: -23.3°C (-9.94°F) Max.: 65.95°C (150.71°F) Actual ambient temperature is displayed Open in circuit: -29.7°C (-21.46°F) Short in circuit: 59.55°C (139.19°F) AMBI TEMP Adjusted ambient temperature / Min.: -30.8°C (-23.44°F), Max.: 50.8°C (123.44°F) - Open in circuit: -29.7°C (-21.46°F) Short in circuit: 59.55°C (139.19°F) EVAP FIN TEMP Evaporator fin thermistor / Min.: -29.7°C (-21.46°F), Max.: 59.55°C (139.19°F) Actual evaporator temperature is displayed - COOLANT TEMP Engine coolant temperature / Min.: 1.3°C (34.34°F), Max.: 90.55°C (194.99°F) Actual engine coolant temperature is displayed while engine is warmed up - REG PRESS SENS Regulator pressure sensor / Min.: 0 kgf/cm 2 G, Max.: 38.25 kgf/cm 2 G Actual refrigerant pressure is displayed - REG CTRL CURRNT Compressor variable output current / Min.: 0 A, Max.: 0.996 A - - #CODES Number of trouble codes / Min.: 0, Max.: 255 Number of DTCs will be displayed - Techstream Air Conditioner: DATA LIST - AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Diagnostic Note Ambient Temperature Sensor Ambient temperature sensor / Min.: -23.3°C (-9.94°F) Max.: 65.95°C (150.71 °F) Actual ambient temperature is displayed Open in circuit: -29.7°C (-21.46°F) Short in circuit: 59.55°C (139.19°F) Adjusted Ambient Temp Adjusted ambient temperature / Min.: -30.8°C (-23.44°F), Max.: 50.8°C (123.44°F) - Open in circuit: -29.7°C (-21.46°F) Short in circuit: 59.55°C (139.19°F) Evaporator Fin Thermistor Evaporator fin thermistor / Min.: -29.7°C (-21.46°F), Max.: 59.55°C (139.19°F) Actual evaporator temperature is displayed - Engine Coolant Temperature Engine coolant temperature / Min.: 1.3°C (34.34°F), Max.: 90.55°C (194.99°F) Actual engine coolant temperature is displayed while engine is warmed up - Regulator pressure Sensor Regulator pressure sensor / Min.: 0 kgf/cm 2 G, Max.: 38.25 kgf/cm 2 G Actual refrigerant pressure is displayed - Regulator Control Current Compressor variable output current / Min.: 0 A, Max.: 0.996 A - - Number of Trouble Codes Number of trouble codes / Min.: 0, Max.: 255 Number of DTCs will be displayed
2. ACTIVE TEST HINT: Using an intelligent tester or Techstream to Perform the Active Tests allows relays, VSVs and actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests. Connect the intelligent tester or Techstream to the DLC3. Turn the ignition switch to ON. Turn the tester on. Enter the following menus: Intelligent tester - Select: DIAGNOSIS / OBD/ MOBD / AIR CONDITIONER / ACTIVE TEST / Techstream - Select: Body Electrical / Air Conditioner / Active Test / According to the display on tester, perform the "Active Test". Intelligent tester Air Conditioner: ACTIVE TEST - AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition A/C MAG CLUTCH Magnetic clutch relay / OFF, ON - Techstream Air Conditioner: ACTIVE TEST - AIR CONDITIONER Tester Display Measurement Item/Range Normal Condition Magnetic Clutch Relay Magnetic clutch relay / OFF, ON

DIAGNOSTIC TROUBLE CODE CHART

DIAGNOSTIC TROUBLE CODE CHART

INSPECTION PROCEDURE

1. CHECK FOR DTC Clear the DTC (See «DIAGNOSIS SYSTEM»(ref-289743-S23169077172008070700000) ). Check the DTC (See «DIAGNOSIS SYSTEM»(ref-289743-S23169077172008070700000) ). Result RESULT DESCRIPTION Result Proceed to DTC B1499 is output A DTC B1499 is not output B B : USE SIMULATION METHOD TO CHECK (See «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-289756-S12371354092008070700000) ) A: Go TO CAN COMMUNICATION SYSTEM (See «CAN COMMUNICATION SYSTEM»(ref-289774-S11182099402008070700000) )

HINT

Start the engine before inspection. Check the IG1 relay or battery if the engine does not start.

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1. INSPECT FUSE (HTR-IG) Remove the HTR-IG fuse from the main body ECU. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION AND SPECIFIED CONDITION Tester Connection Condition Specified Condition HTR-IG fuse Always Below 1 ohms NG : REPLACE FUSE (See «PARTS LOCATION»(ref-289743-S25036800912008070700000) ) OK: Go to Next Step
2. INSPECT AIR CONDITIONING AMPLIFIER (IG+ - GND) Remove the A/C amplifier with the connectors still connected. Turn the ignition switch to ON. Measure the voltage according to the value(s) in the table below. Standard voltage TESTER CONNECTION AND SPECIFIED CONDITION Tester Connection Switch Condition Specified Condition C8-8 (IG+) - C8-12 (GND) Ignition switch ON 11 to 14 V Reinstall the A/C amplifier. NG: Go to step 3 OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN «PROBLEM SYMPTOMS TABLE»(ref-289743-S13413194042008070700000) .
3. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BATTERY) Disconnect the C8 A/C amplifier connector. Measure the voltage according to the value(s) in the table below. Standard voltage TESTER CONNECTION AND SPECIFIED CONDITION Tester Connection (Symbols) Switch Condition Specified Condition C8-8 (IG+) - Body ground Ignition switch OFF Below 1 V Ignition switch ON 11 to 14 V Reconnect the A/C amplifier connector. NG : REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to Next Step
4. CHECK HARNESS AND CONNECTOR (AIR CONDITIONING AMPLIFIER - BODY GROUND) Disconnect the C8 A/C amplifier connector. Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION AND SPECIFIED CONDITION Tester Connection Condition Specified Condition C8-12 (GND) - Body ground Always Below 1 ohms Reconnect the A/C amplifier connector. NG : REPAIR OR REPLACE HARNESS OR CONNECTOR OK : REPLACE AIR CONDITIONING AMPLIFIER (See «REMOVAL»(ref-289743-S13758048292008070700000) )

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1. CHECK REFRIGERANT PRESSURE USING MANIFOLD GAUGE SET This is a method to identify trouble areas by using a manifold gauge set. Read the manifold gauge pressure under the following conditions. Test conditions: Engine warm. All doors fully open. A/C switch ON. Blower speed control switch at HI. Engine running at 1,500 rpm. Air inlet mode damper set at recirculation. Temperature control lever in MAX. COLD position. Air temperature at air inlet 30 to 35°C (86 to 95°F). When the refrigerant volume is correct, the gauge reading indicates as follows: Gauge reading GAUGE READING Pressure side Refrigerant volume Low 0.15 to 0.25 MPa (1.5 to 2.5 kgf/cm 2 , 22 to 36 psi) High 1.37 to 1.57 MPa (14 to 16 kgf/cm 2 , 199 to 228 psi) HINT: Pressure varies in accordance with certain conditions (outside air temperature, sunlight and wind). When there is moisture in the refrigeration system: SYMPTOMS REFERENCE CHART Symptoms Probable Cause Diagnosis Corrective Actions During operation, pressure on low pressure side cycles between normal and vacuum Moisture in refrigeration system freezes at expansion valve orifice, causing temporary interruption of cycle However, when melted, returns to normal condition Receiver dryer over saturated Moisture in refrigeration system freezes at expansion valve orifice and blocks refrigerant circulation Replace receiver dryer Remove moisture from cycle by repeatedly evacuating air Supply appropriate volume of new refrigerant When cooling is insufficient: SYMPTOMS REFERENCE CHART Symptoms Probable Cause Diagnosis Corrective Actions Pressure low on both low and high pressure sides Cooling performance insufficient Gas leakage from refrigeration system Insufficient refrigerant Refrigerant leakage Check for gas leakage using gas leak detector, and repair if necessary Supply appropriate volume of new refrigerant If indicated pressure value close to 0 when connected to gauge, create vacuum after inspecting and repairing location of leakage When the circulation of the refrigerant is poor: SYMPTOMS REFERENCE CHART Symptoms Probable Cause Diagnosis Corrective Action Pressure low on both low and high pressure sides Frost exists on piping from condenser to A/C unit Refrigerant flow obstructed by dirt in condenser Condenser clogged Replace condenser When the refrigerant does not circulate: SYMPTOMS REFERENCE CHART Symptoms Probable Causes Diagnosis Corrective Actions Vacuum indicated on low pressure side, and extremely low pressure indicated on high pressure side Frost or condensation seen on piping on both sides of condenser or expansion valve Refrigerant flow obstructed by moisture or dirt in refrigeration system Refrigerant flow obstructed by gas leakage from expansion valve Refrigerant does not circulate Check expansion valve Clean expansion valve with compressed air Replace condenser Evacuate air and then supply appropriate volume of new refrigerant For gas leakage from expansion valve, replace expansion valve When the refrigerant is overcharged or cooling of condenser is insufficient: SYMPTOMS REFERENCE CHART Symptoms Probable Causes Diagnosis Corrective Actions Pressure extremely high on both sides Excessive refrigerant Cooling performance of condenser insufficient Excessive refrigerant Cooling performance of condenser insufficient Clean condenser fins Check condenser fan motor operation by switching A/C ON If 1 and 2 normal, check amount of refrigerant and supply appropriate volume of refrigerant When there is air in the refrigeration system: SYMPTOMS REFERENCE CHART Symptoms Probable Causes Diagnosis Corrective Actions Pressure extremely high on both low and high pressure sides Low pressure piping too hot to touch Air in refrigeration system Air in refrigeration system Insufficient vacuum purging Check whether compressor oil dirty or insufficient Evacuate air and supply new refrigerant When the expansion valve malfunctions: SYMPTOMS REFERENCE CHART Symptoms Probable Causes Diagnosis Corrective Actions Pressure extremely high on both low and high pressure sides Frost or condensation on piping on low pressure side Expansion valve malfunction Excessive refrigerant in low pressure piping Expansion valve opening too wide Replace expansion valve When the compressor is defective: SYMPTOMS REFERENCE CHART Symptoms Probable Cause Diagnosis Corrective Actions Pressure extremely high on both low and high pressure sides Pressure extremely low on high pressure side Internal leakage in compressor Compression failure of compressor Leakage from damaged valve or broken sliding parts in compressor Repair or replace compressor
2. INSPECT IDLING SPEED Warm up the engine. Inspect the idling speed when these conditions are established. Engine warm When checking the idling speed, shift the transmission to either the neutral position or the parking position. Standard: for manual transaxle IDLING SPEED DESCRIPTION - FOR MANUAL TRANSAXLE Switch Condition Condition Idling Speed Switch A/C OFF Always 600 to 700 rpm Switch A/C ON Air Conditioning Pressure Lo --> Hi 660 to 760 --> 750 to 850 rpm for automatic transaxle IDLING SPEED DESCRIPTION - FOR AUTOMATIC TRANSAXLE Switch Condition Condition Idling Speed Switch A/C OFF Always 600 to 700 rpm Switch A/C ON Air Conditioning Pressure Lo --> Hi 690 to 790 --> 770 to 870 rpm If the idling speed is not as specified, check the idle control system.

ON-VEHICLE INSPECTION

1. INSPECT CONDENSER ASSEMBLY If the fins of the cooler condenser assembly are dirty, clean them with water and dry them with compressed air. NOTE: Do not damage the fins of the condenser assembly. If the fins of the cooler condenser assembly are bent, straighten them using a screwdriver or pliers.
2. CHECK CONDENSER FOR REFRIGERANT LEAKAGE Check the pipe joints for gas leakage, using a halogen leak detector. Check the tightening torque of the joints if gas leakage is detected from any pipe joints.

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1. DISCHARGE REFRIGERANT FROM REFRIGERATION SYSTEM (See «REPLACEMENT»(ref-289743-S36547954692008070700000) )
2. REMOVE NO. 1 RADIATOR GRILLE GARNISH (See «REMOVAL»(ref-289771-S20374716602008070700000) )
3. REMOVE RADIATOR GRILLE (See «REMOVAL»(ref-289771-S20374716602008070700000) )
4. REMOVE FRONT BUMPER COVER (See «REMOVAL»(ref-289771-S20374716602008070700000) )
5. REMOVE BATTERY CARRIER Remove the bolt and loosen the nut, and remove the battery carrier.
6. SEPARATE NO. 1 WATER HOSE CLAMP BRACKET Remove the 2 bolts and separate the. No. 1 water hose clamp bracket.
7. SEPARATE HOOD LOCK CONTROL CABLE ASSEMBLY (See «REMOVAL»(ref-289752-S03883011382008070700000) )
8. REMOVE HOOD LOCK SUPPORT SUB-ASSEMBLY (See «REMOVAL»(ref-289752-S03883011382008070700000) )
9. REMOVE RADIATOR SUPPORT CUSHION (See «REMOVAL»(ref-289752-S03883011382008070700000) )
10. REMOVE NO. 2 FAN SHROUD Remove the 2 bolts and No. 2 fan shroud.
11. DISCONNECT DISCHARGE HOSE SUB-ASSEMBLY Remove the bolt and disconnect the discharge hose from the cooler condenser. Remove the O-ring from the discharge hose. NOTE: Seal the openings of the disconnected parts using vinyl tape to prevent moisture and foreign matter from entering.
12. DISCONNECT AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY Remove the bolt and disconnect the air conditioning tube from the condenser. Remove the O-ring from the air conditioning tube. NOTE: Seal the openings of the disconnected parts using vinyl tape to prevent moisture and foreign matter from entering.
13. REMOVE CONDENSER Remove the condenser from the vehicle. NOTE: Do not damage the condenser or radiator when removing the condenser.

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1. REMOVE NO. 1 COOLER CONDENSER CUSHION Remove the 4 cooler condenser cushions.
2. REMOVE COOLER DRYER Using a 14 mm straight hexagon wrench, remove the cap from the modulator. Using pliers, remove the cooler dryer.

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1. INSTALL COOLER DRYER Using pliers, install the cooler dryer onto the modulator. Apply sufficient compressor oil to the O-ring and the fitting surface of the cap. Compressor oil: ND-OIL 8 or equivalent Using a 14 mm straight hexagon wrench, install the cap onto the cooler condenser core. Torque: 2.9 N*m (30 kgf*cm, 26 in.*lbf)
2. INSTALL NO. 1 COOLER CONDENSER CUSHION Install the 4 cooler condenser cushions.

Scheme 91

1. INSTALL CONDENSER Install the condenser into the vehicle. NOTE: Do not damage the condenser or radiator when installing the condenser. HINT: If a new condenser is installed, add compressor oil to the condenser as follows. Capacity: Add 40 cc (1.35 fl. oz.) Compressor oil: ND-OIL8 or equivalent.
2. CONNECT AIR CONDITIONING TUBE AND ACCESSORY ASSEMBLY Remove the attached vinyl tape from the pipe and the connecting part of the condenser. Apply sufficient compressor oil to a new O-ring and the fitting surface of the tube joint. Compressor oil: ND-OIL8 or equivalent Install the O-ring onto the air conditioning tube. Install the air conditioning tube onto the condenser with the bolt. Torque: 5.4 N*m (55 kgf*cm, 48 in.*lbf)
3. CONNECT DISCHARGE HOSE SUB-ASSEMBLY Remove the attached vinyl tape from the hose and the connecting part of the condenser. Apply sufficient compressor oil to a new O-ring and the fitting surface of the hose joint. Compressor oil: ND-OIL8 or equivalent Install the O-ring onto the discharge hose. Install the discharge hose onto the condenser with the bolt. Torque: 5.4 N*m (55 kgf*cm, 48 in.*lbf)
4. INSTALL NO. 2 FAN SHROUD Install the No. 2 fan shroud onto the radiator with the 2 bolts. Torque: 11 N*m (112 kgf*cm, 8 ft.*lbf)
5. INSTALL RADIATOR SUPPORT CUSHION (See «INSTALLATION»(ref-289752-S17907450142008070700000) )
6. INSTALL HOOD LOCK SUPPORT SUB-ASSEMBLY (See «INSTALLATION»(ref-289752-S17907450142008070700000) )
7. INSTALL HOOD LOCK CONTROL CABLE ASSEMBLY (See «INSTALLATION»(ref-289752-S17907450142008070700000) )
8. INSTALL NO. 1 WATER HOSE CLAMP BRACKET Install the No. 1 water hose clamp bracket with the 2 bolts. Torque: 5.0 N*m (51 kgf*cm, 44 in.*lbf)
9. INSTALL BATTERY CARRIER Install the battery carrier with the bolt and nut. Torque: 17 N*m (168 kgf*cm, 12 ft.*lbf) for Bolt 3.5 N*m (35 kgf*cm, 31 in.*lbf) for Nut
10. INSTALL FRONT BUMPER COVER (See «INSTALLATION»(ref-289771-S20971564792008070700000) )
11. INSTALL RADIATOR GRILLE (See «INSTALLATION»(ref-289771-S20971564792008070700000) )
12. INSTALL NO. 1 RADIATOR GRILLE GARNISH (See «INSTALLATION»(ref-289771-S20971564792008070700000) )
13. INSPECT HOOD (See «ADJUSTMENT»(ref-289765-S03061414782008070700000) )
14. ADJUST HOOD (See «ADJUSTMENT»(ref-289765-S03061414782008070700000) )
15. CHARGE REFRIGERANT (See «REFRIGERANT LINE»(ref-289743-S25365990302008070700000) )
16. WARM UP ENGINE (See «REPLACEMENT»(ref-289743-S36547954692008070700000) )
17. INSPECT FOR REFRIGERANT LEAK (See «REPLACEMENT»(ref-289743-S36547954692008070700000) )

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1. REMOVE NO. 1 RADIATOR GRILLE GARNISH (See «REMOVAL»(ref-289771-S20374716602008070700000) )
2. REMOVE RADIATOR GRILLE (See «REMOVAL»(ref-289771-S20374716602008070700000) )
3. REMOVE FRONT BUMPER COVER (See «REMOVAL»(ref-289771-S20374716602008070700000) )
4. REMOVE AMBIENT TEMPERATURE SENSOR Disconnect the connector. Disengage the clamp and the ambient temperature sensor.

Scheme 94

1. INSPECT AMBIENT TEMPERATURE SENSOR Measure the resistance according to the value(s) in the table below. Standard resistance TESTER CONNECTION AND SPECIFIED CONDITION Tester Connection Condition Specified Condition 1 - 2 10°C (50°F) 3.00 to 3.73 kohms 1 - 2 15°C (59°F) 2.45 to 2.88 kohms 1 - 2 20°C (68°F) 1.95 to 2.30 kohms 1 - 2 25°C (77°F) 1.60 to 1.80 kohms 1 - 2 30°C (86°F) 1.28 to 1.47 kohms 1 - 2 35°C (95°F) 1.00 to 1.22 kohms 1 - 2 40°C (104°F) 0.80 to 1.00 kohms 1 - 2 45°C (113°F) 0.65 to 0.85 kohms 1 - 2 50°C (122°F) 0.50 to 0.70 kohms 1 - 2 55°C (131°F) 0.44 to 0.60 kohms 1 - 2 60°C (140°F) 0.36 to 0.50 kohms NOTE: Even slightly touching the sensor may change the resistance value. Be sure to hold the sensor connector. When measuring, the sensor temperature must be the same as the ambient temperature. HINT: As the temperature increases, the resistance decreases (Scheme 94) If the resistance is not as specified, replace the ambient temperature sensor.