Page 2825 of 3189
Air Conditioning Controls (Only) Are Ineffective
(Rear Defogger Control Excluded)
NJEL0617
1 HARNESS CHECK
1. Turn the ignition switch OFF.
2. Disconnect A/C auto amp. connector and AV and NAVI control unit connector.
3. Check continuity between A/C auto amp. and AV and NAVI control unit.
SKIA1431E
MTBL1544
4. Check continuity between AV and NAVI control unit and ground.
MTBL1545
OK or NG
OK GO TO 2.
NG Check harness between A/C auto amp. and AV and NAVI control unit.
Check connector housings for disconnected or loose terminals.
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IDX
NAVIGATION SYSTEM
Air Conditioning Controls (Only) Are Ineffective (Rear Defogger ControlExcluded)
EL-489
Page 2826 of 3189
2 A/C–AV, AV–AC, AC–CLK COMMUNICATION SIGNAL CHECK
1. Connect A/C AUTO AMP. connector.
2. Turn the ignition switch ON.
3. Check voltage between AV and NAVI control unit and ground.
SKIA1432E
MTBL1546
OK or NG
OK GO TO 3.
NG Replace harness.
Replace A/C AUTO AMP.
3 A/C - AV, AV - AC, AC - CLK COMMUNICATION SIGNAL CHECK
1. Connect AV and NAVI control unit connector.
2. Turn the ignition switch ON.
3. Check voltage signal between AV and NAVI control unit terminals 43, 44, 45 and ground.
SKIA1432E
MTBL1547
OK or NG
OK Replace A/C auto amplifier.
NG Replace AV and NAVI control unit.
NAVIGATION SYSTEM
Air Conditioning Controls (Only) Are Ineffective (Rear Defogger ControlExcluded) (Cont’d)
EL-490
Page 2827 of 3189

Rear Defogger Does Not OperateNJEL0618
1 HARNESS INSPECTION
1. Turn the ignition switch OFF.
SKIA1434E
2. Disconnect multifunction switch connector and smart entrance controlunit connector.
3. Check continuity between multifunction switch harness connector M97 terminal 9 (G/B) and smart entrance control unit
harness connector M193 terminal 22 (G/B).
Continuity should exist.
4. Check continuity between multifunction switch harness connector M97 terminal 9 (G/B) and ground.
Continuity should not exist.
OK or NG
OK GO TO 2.
NG Repair harness.
2 CHECK REAR DEFOGGER ON SIGNAL
1. Connect multifunction switch connector and smart entrance control unit connector.
2. Turn the ignition switch ON.
3. Check continuity between multifunction switch and ground when rear defogger switch is operated.
SKIA1435E
MTBL1548
OK or NG
OK Replace smart entrance control unit.
NG Replace multifunction switch.
GI
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LC
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IDX
NAVIGATION SYSTEM
Rear Defogger Does Not Operate
EL-491
Page 2828 of 3189
Rear Defogger Indicator Lamp Does Not
Illuminate
NJEL0619
1 CHECK POSITION OF IGNITION SWITCH
Is ignition switch ON?
YesorNo
Ye s G O T O 2 .
No Rear defogger does not operate if ignition switch is not ON.
2 CHECK OPERATION OF REAR DEFOGGER
Does rear defogger operate when rear defogger switch is turned ON? (Does fogging disappear?)
YesorNo
Ye s G O T O 3 .
No Check rear defogger system. Refer to EL-183, “Rear Defogger Does Not Operate”.
3 CHECK REAR DEFOGGER INDICATOR LAMP SIGNALS
1. Disconnect multifunction switch connector.
2. Check voltage between multifunction switch terminal 10 (L/R) and ground.
SKIA1433E
Battery voltage should exist.
OK or NG
OK Replace multifunction switch.
NG Check harness for open or short between multifunction switch and rear defogger relay.
NAVIGATION SYSTEM
Rear Defogger Indicator Lamp Does Not Illuminate
EL-492
Page 2829 of 3189
No Fuel Information Is Displayed/No Warning
Message Is Displayed
NJEL0620
1 CHECK DISPLAY CONDITIONS
Check display conditions for all warning screens.
MTBL1549
GO TO 2.
2 HARNESS CHECK
1. Turn the ignition switch OFF.
2. Disconnect connectors of combination meter and AV and NAVI control unit.
3. Check continuity between AV and NAVI control unit and combination meter.
YEL846D
MTBL1550
4. Check continuity between AV and NAVI control unit and ground.
MTBL1551
OK or NG
OK GO TO 3.
NG Repair harness.
Check connector housings for disconnected or loose terminals.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
NAVIGATION SYSTEM
No Fuel Information Is Displayed/No Warning Message Is Displayed
EL-493
Page 2830 of 3189
3 COMMUNICATION SIGNAL (AV–ME) CHECK
1. Connect connectors of combination meter and AV and NAVI control unit.
2. Turn the ignition switch ON.
3. Check voltage signal between AV and NAVI control unit terminal 34 and ground.
SKIA1437E
MTBL1552
OK or NG
OK GO TO 4.
NG Replace AV and NAVI control unit.
4 COMMUNICATION SIGNAL (ME–AV) CHECK
1. Turn ignition switch to ON and display “VEHICLE ELECTRONIC SYSTEMS” screen.
2. Check voltage signal between AV and NAVI control unit harness connectorM96 terminal 35 (G) and ground.
SKIA1438E
35 (G)- ground:
EL-450, “Terminals and Reference Value for AV and NAVI Control Unit”
OK or NG
OK Replace AV and NAVI control unit.
NG Check combination meter system. EL-339, “Combination Meter Self-Diagnosis”.
NAVIGATION SYSTEM
No Fuel Information Is Displayed/No Warning Message Is Displayed (Cont’d)
EL-494
Page 2831 of 3189

Previous Conditions Are Not StoredNJEL0621
1 BATTERY POWER CHECK
Check AV and NAVI control unit battery power.
Refer to EL-467, “Power Supply and Ground Circuit Check”.
OK or NG
OK Replace AV and NAVI control unit.
NG Check AV and NAVI control unit battery power system harness.
The Position of The Current-Location Mark Is
Not Correct
NJEL0622
1 SELF-DIAGNOSIS
“Self-diagnosis mode” of the self-diagnosis function EL-458, “Self-Diagnosis Mode”.
OK or NG
OK GO TO 2.
NG Check the applicable parts.
2 HISTORY OF ERRORS DIAGNOSIS
Was any error stored in EL-464, “HISTORY OF ERRORS” of the CONFIRMATION/ADJUSTMENT mode?
YesorNo
Yes EL-464, “DIAGNOSIS BY HISTORY OF ERRORS”.
No EL-499, “Driving Test”.
Radio Wave From The GPS Satellite Is Not
Received
NJEL0623
1 ENVIRONMENT CHECK
Check if any metal object that intercepts radio waves or an object that emits radio waves (such as a portable phone) is
located near the GPS antenna. Check if the vehicle is shielded by a building.
OK or NG
OK System is normal.
The GPS antenna may not be able to receive radio waves from the GPS satelliteif it
is shielded by metal object or an object emitting radio waves is placed nearit.
NG GO TO 2.
2 SELF-DIAGNOSIS
Refer to EL-458, “Self-Diagnosis Mode”.
OK or NG
OK Replace GPS antenna.
NG Check the applicable parts.
GI
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IDX
NAVIGATION SYSTEM
Previous Conditions Are Not Stored
EL-495
Page 2832 of 3189

Display Does Not Change When Screen
Adjustment Is Performed
NJEL0624
1 CHECK SYMPTOM
Do other systems operate properly?
Do operate. Replace the display unit.
Do not operate. Check the problem again.
Day/Night Display Switching Is Not Done. Night
Illumination for AV and NAVI Control Unit Does
Not Illuminate
NJEL0625
1 VEHICLE SIGNAL CHECK
1. Start the engine.
2. Diagnose the following items with EL-462, “VEHICLE SIGNALS” in CONFIRMATION/ADJUSTMENT mode.
Lighting switch position 1: ON
Lighting switch OFF: OFF
OK or NG
OK Replace AV and NAVI control unit.
NG EL-472, “Illumination Control Signal Check”.
On Multifunction Switch, a Specific Switch
Does Not Operate in All Conditions
NJEL0626
1
Replace multifunction switch.
Driving Information Is Inaccurate. Maintenance
Information Is Inaccurate
NJEL0627
1 VEHICLE SPEED SIGNAL INSPECTION
Check vehicle speed signal. EL-471, “Vehicle Speed Signal Check”.
OK or NG
OK Replace AV and NAVI control unit.
NG Check combination meter system. EL-339, “Combination Meter Self-Diagnosis”
NAVIGATION SYSTEM
Display Does Not Change When Screen Adjustment Is Performed
EL-496