Auto Repair Manual Free Download and ReviewsFree download ebook pdf files automotive manual

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SERVICE INFORMATION If a 2002 Altima, with manual (non-automatic) A/C, exhibits the following symptoms: • • • • No heat from vents Always discharges cold air A/C does not cool Temperature cannot be adjusted, Check to see if the air mix gear door drive gear fell off. (See Figure 1). If the gear is missing, find it (hopefully it’s still on the floor). Then re-install it using the Service Procedure on Page 2. SERVICE PROCEDURE 1. Remove the following components; • • • cluster lid “C” (HVAC control surround trim) fuse box cover driver’s side instrument panel lower cover (attached with 2 screws). 2. Remove the screw from the center of the cable operated gear (see Figure 2). 3. Locate the small (about 1” dia.) white air mix door gear. Hopefully it is still on the floor. NOTE: If you cannot find the old air mix door gear, order a new gear. Refer to the Parts Information section of this bulletin. 4. To see how it is supposed to fit, temporarily install the gear into the air mix door shaft (see Figure 3). 5. Remove the gear, thoroughly clean the gear shaft of any grease, and apply the glue. See Figure 4.

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Condition Some customers may comment on an inoperative or intermittent Heating, Ventilation and Air Conditioning (HVAC) blower motor. Others may comment that the blower motor speed may momentarily drop or that the blower motor continues to run after the key is turned off. Cause This condition may be caused by a voltage spike from the wiper motor. The voltage spike may cause a logic lock up in the blower motor control module that may be either momentary or permanent. Correction DO THIS DON’T DO THIS Install a Capacitor at the Blower Motor Control Module Connector Technicians are to install a capacitor, P/N 25073556, at the blower motor control module connector using the following procedure: 1. Disconnect the negative cable from the battery. Refer to the Battery Negative Cable Disconnect/Connect procedure in the Engine Electrical section of SI. 2. Remove the right closeout/insulator panel. Refer to the Closeout/Insulator Panel Replacement-Right procedure in the Instrument Panel, Gages and Console section of SI. DO NOT replace the Blower Motor Control Module, Blower Motor or the HVAC Control Head

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Remove switch plate with small thin bladed tool at forward retainer clip. Disconnect wire harness. Insert small thin-bladed tool between side of warning lamp/reflector and armrest base to release retaining tab. Disconnect wire connector. Remove escutcheon screw. Disconnect wire harness. Disconnect lock control lever and escutcheon. Remove two screws and pull handle (Park Avenue). Remove trim panel retaining screws. Release trim panel fasteners. Carefully feed wire harness through door. Remove trim panel. Disconnect wire connector and speaker (if equipped). Remove armrest bracket and pull handle brackets then carefully peel water deflector from inner door panel. Remove two screws from the back of the HVAC control (RH side) or headlamp switch (LH side) then remove control/switch from applique. Remove six applique nuts. Remove applique. 18. 19. 20. 21. Gently pry courtesy lamp lens and remove. Remove eight nuts. Remove carpet. Remove speaker cover.

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2. Disconnect and isolate the battery negative cable (Fig 14). 3. Remove the instrument panel top cover (Fig. 15). a. Using a trim stick (special tool C-4755) or equivalent, gently pry off the left and right A-pillar trim. Refer to: “Body and Frame : Interior Trim : Service and Repair” See: Trim Panel\Service and Repair b. Using a trim stick or equivalent, gently pry out the front power window c. d. e. f. g. switch from the instrument panel center bezel. Disconnect the harness connector and remove. Remove the one center bezel retaining screw. Pull off the HVAC control knobs. Using a trim stick or equivalent, gently pry off the center bezel and remove. Remove the two top cover retaining screws. Gently pull rearward on the top cover and unlatch it from the instrument panel and remove. 4. Remove two screws retaining HVAC control. 5. Pull the HVAC control out of instrument panel, disconnect the one wiring connector, the one vacuum harness connector, and disconnect the two control cables. Remove HVAC control from vehicle. 6. Remove the two retaining screws to the upper and lower steering column shrouds. 7. Gently pry the upper and lower shrouds apart and remove from steering column. 8. Remove the left lower instrument panel bezel. Pull top rearward, lower to floor and with a quick pulling motion remove off instrument panel. 9. Disconnect the steering column wire connectors: a. Ignition Switch b. Multi-Function Switch c. Clockspring CAUTION: Lock the steering wheel in the straight ahead position. This will prevent clockspring damage when the steering wheel rotates freely. 10. Remove steering column: a. Remove the steering column pinch bolt at the base of the lower coupler. b. Remove the four retaining nuts to the steering column. c. Pull column rearward and out of instrument panel opening and remove from vehicle. Fig. 16 Brake Pedal Support Bracket Instrument Panel Retaining Bolts

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HVAC Module Self-Test The HVAC module self-test will not detect concerns associated with data link messages like engine coolant temperature or vehicle speed signals. A scan tool must be used to retrieve these concerns. The HVAC module self-test will detect concerns in the system control functions and will display hard DTCs. Hard DTCs identify faults which are present during the self-test. The vehicle interior/ambient temperature should be between 4-32° (40-90°F) when carrying out the self-tes t. If the temperatures are not within the specified ranges, false temperature C sensor DTCs will be displayed. The self-test can be initiated at any time. Normal operation of the system stops when the self-test is activated. To enter the self-test, press the OFF and FLOOR buttons simultaneously and then press the AUTO button within 2 seconds. The display will show the fan speed indicator illuminating from low to high. The test may run as long as 30 seconds. Record all DTCs displayed. If any DTCs appear during the self-test, follow the diagnostics procedure given under ACTION for each DTC given. If a condition exists but no DTCs appear during the self-test, GO to Symptom Chart – Climate Control Systems. To exit the self-test and clear all DTCs, press the front DEFROST button. The HVAC control assembly will then turn OFF (display blank) and all DTCs will be cleared. Always exit the self-test before powering the system down (system turned OFF). If a condition exists, but no on-demand DTCs appear during the self-test, carry out the HVAC Module Retrieve Continuous DTCs self test. HVAC Module — Retrieve Continuous DTCs This function will display continuous (intermittent) codes and hard faults that occur during normal operation. To display continuous codes, press the OFF and FLOOR buttons simultaneously and then release and within 2 seconds press the RECIRC button. To exit the display of continuous codes, press the front DEFROST button. This will exit and clear all DTCs. Press any button except DEFROST to exit without clearing DTCs set before the last ignition cycle. Always exit continuous codes display before powering the system down (system turned off). Continuous DTCs are saved only after an ignition cycle. Continuous DTCs will be deleted after 80 ignition switch ON cycles after the intermittent condition occurs.