2006 INFINITI M35 Factory Service Manual

wheel bolt torque differential key fob jacking height reset

Page 505 of 5621

INFINITI M35 2006 Factory Service Manual ATC-58
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
Checks must be made visually, by listening the sound, or by touching air outlets with hand, etc. for improper
operation.
*1: FOO

ATC-58
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
Checks must be made visually, by listening the sound, or by touching air outlets with hand, etc. for improper
operation.
*1: FOOT position during automatic control. Refer to AT C - 6 3 , "
AUXILIARY MECHANISM: FOOT POSITION
SETTING TRIMMER" .
OK or NG
OK >> GO TO 8.
NG >>
Air outlet does not change.
Go to Mode Door Motor Circuit. Refer to AT C - 7 5 , "
Mode Door Motor Circuit" .
Upper ventilator outlet does not change.
Go to Upper Ventilator Door Motor Circuit. Refer to AT C - 8 0 , "
Upper Ventilator Door Motor Cir-
cuit" .
Intake door does not change.
Go to Intake Door Motor Circuit. Refer to AT C - 8 6 , "
Intake Door Motor Circuit" .
Blower motor operation is malfunctioning.
Go to Blower Motor Circuit. Refer to AT C - 8 9 , "
Blower Motor Circuit" .
Magnet clutch does not engage.
Go to Magnet Clutch Circuit. Refer to ATC-94, "
Magnet Clutch Circuit" .
Discharge air temperature does not change.
Go to Air Mix Door Motor Circuit. Refer to AT C - 8 3 , "
Air Mix Door Motor Circuit" .
8. STEP-5: TEMPERATURE OF EACH SENSOR IS CHECKED
1. Press temperature control (UP) switch (driver side).
2. Code No. 51 appears on the display.
>> GO TO 9.
9. CHECK AMBIENT SENSOR
Press (DEF) switch one time. Temperature detected by ambient
sensor is indicated on the display.
NOTE:
If the temperature indicated on the display greatly differs from the
actual temperature, check sensor circuit first, and then check sensor.
OK or NG
OK >> GO TO 10.
NG >> Go to Ambient Sensor Circuit. Refer to AT C - 11 3 , "
Ambi-
ent Sensor Circuit" .
10. CHECK IN-VEHICLE SENSOR
Press (DEF) switch for the second time. Temperature detected
by in-vehicle sensor is indicated on the display.
NOTE:
If the temperature indicated on the display greatly differs from the
actual temperature, check sensor circuit first, and then check sensor.
OK or NG
OK >> GO TO 11.
NG >> Go to In-vehicle Sensor Circuit. Refer to AT C - 11 6 , "
In-
Vehicle Sensor Circuit" .
RJIA0223E
RJIA1271E

Page 506 of 5621

INFINITI M35 2006 Factory Service Manual TROUBLE DIAGNOSIS
ATC-59
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AT C
Revision: 2006 January2006 M35/M45
11 . CHECK INTAKE SENSOR
Press (DEF) switch for the third time. Temperature detected by
intake senso

Page 507 of 5621

INFINITI M35 2006 Factory Service Manual ATC-60
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
13. CHECK MALFUNCTIONING SENSOR
Refer to the following chart for malfunctioning code No.
(If two or more sensors malfunction, corresponding

Page 508 of 5621

INFINITI M35 2006 Factory Service Manual TROUBLE DIAGNOSIS
ATC-61
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AT C
Revision: 2006 January2006 M35/M45
14. CHECK MALFUNCTIONING DOOR MOTOR POSITION SWITCH
Mode and/or intake door motor PBR(s) is/are malfunctioning.

Page 509 of 5621

INFINITI M35 2006 Factory Service Manual ATC-62
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
AUXILIARY MECHANISM: TEMPERATURE SETTING TRIMMER
The trimmer compensates for differences in range of 3C (6F) between temperature setting (di

Page 510 of 5621

INFINITI M35 2006 Factory Service Manual TROUBLE DIAGNOSIS
ATC-63
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AT C
Revision: 2006 January2006 M35/M45
AUXILIARY MECHANISM: FOOT POSITION SETTING TRIMMER
Wind distribution ratio in FOOT mode can be set.
Operating pr

Page 511 of 5621

INFINITI M35 2006 Factory Service Manual ATC-64
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
Operational CheckNJS000GK
The purpose of the operational check is to check if the individual system operates properly.
CHECKING MEMORY FUNCT

Page 512 of 5621

INFINITI M35 2006 Factory Service Manual TROUBLE DIAGNOSIS
ATC-65
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AT C
Revision: 2006 January2006 M35/M45
CHECKING DISCHARGE AIR (UPPER VENT SWITCH)
1. Press temperature control (DOWN) switch (driver side) until 18C (6

TROUBLE DIAGNOSIS
ATC-65
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AT C
Revision: 2006 January2006 M35/M45
CHECKING DISCHARGE AIR (UPPER VENT SWITCH)
1. Press temperature control (DOWN) switch (driver side) until 18C (60F) is displayed.
2. Press fan (UP:+) switch until Max. speed.
3. Set MODE switch (driver side) to VENT position.
4. Press UPPER VENT switch.
AUTO indicator should illuminate.
5. Press temperature control (UP) switch (driver side) until 32
C (90F) is displayed.
6. Conform that discharger come out.
7. Press UPPER VENT switch again.
AUTO indicator should OFF.
If NG, go to trouble diagnosis procedure for ATC-80, "
Upper Ventilator Door Motor Circuit" .
If OK, continue the check.
CHECKING INTAKE AIR
1. Press intake switch. Recirculation indicator should illuminate.
2. Press intake switch again. Fresh indicator should illuminate.
3. Listen for intake door position change. (Slight change of blower sound can be heard.)
If NG, go to trouble diagnosis procedure for ATC-86, "
Intake Door Motor Circuit" .
If OK, continue the check.
NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and intake door position is at
FRESH when the D/F or DEF is selected.
CHECKING TEMPERATURE DECREASE
1. Press temperature control (DOWN) switch (driver side) until 18C (60F) is displayed.
2. Check for cold air at discharge air outlets.
If NG, go to trouble diagnosis procedure for ATC-99, "
Insufficient Cooling" .
If OK, continue the check.
CHECKING TEMPERATURE INCREASE
1. Press temperature control (UP) switch (driver side) until 32C (90F) is displayed.
2. Check for hot air at discharge air outlets.
If NG, go to trouble diagnosis procedure for ATC-109, "
Insufficient Heating" .
If OK, continue the check.
CHECKING A/C SWITCH
1. Press AUTO switch and A/C switch.
2. A/C switch indicator will turn ON.
Confirm that the compressor clutch engages (sound or visual inspection).
CHECKING AUTO MODE
1. Press AUTO switch and A/C switch.
2. Display should indicate AUTO.
Discharge air and blower speed will depend on ambient, in-vehicle, and set temperatures.
If NG, go to trouble diagnosis procedure for AT C - 6 6 , "
Power Supply and Ground Circuit for Auto Amp." , then
if necessary, trouble diagnosis procedure for AT C - 9 4 , "
Magnet Clutch Circuit" .
If all operational checks are OK (symptom cannot be duplicated), go to Incident Simulation Tests in GI-28,
"How to Perform Efficient Diagnosis for an Electrical Incident" and perform tests as outlined to simulate driv-
ing conditions environment. If symptom appears, refer to AT C - 4 1 , "
SYMPTOM TABLE" and perform applica-
ble trouble diagnosis procedures.

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