Page 3321 of 4801

MWI-66
< DTC/CIRCUIT DIAGNOSIS >
AMBIENT SENSOR SIGNAL CIRCUIT
AMBIENT SENSOR SIGNAL CIRCUIT
DescriptionINFOID:0000000009461729
Transmits the ambient sensor signal to the IPDM E/R.
Component Function CheckINFOID:0000000009461730
1.COMBINATION METER INPUT SIGNAL
1. Select METER/M&A on CONSULT.
2. Check OUTSIDE TEMP on DATA MONITOR.
Does the ambient temperature approx imately match the CONSULT display?
YES >> Replace combination meter. Refer to MWI-82, "Removal and Installation".
NO >> Refer to MWI-66, "Diagnosis Procedure"
.
Diagnosis ProcedureINFOID:0000000009461731
Regarding Wiring Diagram information, refer to MWI-32, "Wiring Diagram".
1.CHECK AMBIENT SENSOR CIRCUITS BETWEE N COMBINATION METER AND IPDM E/R
1. Disconnect combination meter connecto r M24 and IPDM E/R connector E63.
2. Check continuity between combination meter har ness connector M24 terminals 30, 31 and IPDM E/R har-
ness connector E63 terminals 49 and 50.
3. Check continuity between combination mete r harness connector M24 terminals 30, 31 and ground.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace harness or connector.
2.CHECK AMBIENT SENSOR CIRCUITS BETW EEN IPDM E/R AND AMBIENT SENSOR
1. Disconnect IPDM E/R connector E201 and ambient sensor connector E211.
2. Check continuity between IPDM E/R harness connec tor E201 terminals 87, 95 and ambient sensor har-
ness connector E211 terminals 1 and 2.
3. Check continuity between IPDM E/R har ness connector E201 terminals 87, 95 and ground.
Is the inspection result normal?
Connector Terminal Connector Terminal Continuity M24 30
E63 49
Ye s
31 50
Connector Terminal Continuity M24 30
No
31
Connector Terminal Connector Terminal Continuity
E201 87
E211 1
Ye s
95 2
Connector Terminal Continuity E201 87 No
95
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MWI
AMBIENT SENSOR SIGNAL CIRCUITMWI-67
< DTC/CIRCUIT DIAGNOSIS >
C
D E
F
G H
I
J
K L
M B
A
O P
YES >> Replace IPDM E/R. Refer to PCS-32, "Removal and Installation".
NO >> Repair or replace harness or connector.
Component InspectionINFOID:0000000009461732
1.CHECK AMBIENT SENSOR
1. Turn ignition switch OFF.
2. Disconnect ambient sensor connector.
3. Check resistance between ambient sensor terminals.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace ambient sensor. Refer to MWI-83, "Removal and Installation"
.
Te r m i n a lCondition
Resistance: kΩ
Temperature: °C ( °F)
12 −
15 (5) 12.73
− 10 (14) 9.92
− 5 (23) 7.80
0 (32) 6.19
5 (41) 4.95
10 (50) 3.99
15 (59) 3.24
20 (68) 2.65
25 (77) 2.19
30 (86) 1.81
35 (95) 1.51
40 (104) 1.27 45 (113) 1.07
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
Page 3323 of 4801

MWI-68
< DTC/CIRCUIT DIAGNOSIS >
METER CONTROL SWITCH SIGNAL CIRCUIT
METER CONTROL SWITCH SIGNAL CIRCUIT
Diagnosis ProcedureINFOID:0000000009461733
Regarding Wiring Diagram information, refer to MWI-32, "Wiring Diagram".
1.CHECK METER CONTROL SWITCH SIGNAL
1. Turn ignition switch ON.
2. Check voltage between the following terminals of the meter control switch harness connector M158.
Is the inspection result normal?
YES >> Inspection End.
NO >> GO TO 2.
2.CHECK METER CONTROL SWITCH HARNESS
1. Turn ignition switch OFF.
2. Disconnect combination meter harness connector M26 and meter control switch harness connector
M158.
3. Check continuity between combination meter harness connector M26 and meter control switch harness connector M158.
4. Check continuity between combination meter harness connector and ground.
Is the inspection result normal?
YES >> Inspection End.
NO >> Repair or replace harness or connectors.
Meter control switch
ConditionVo l ta g e
(Approx.)
Connector Te r m i n a l s
(+) ( −)
M158 7
4When illumination control switch (
−) is pressed 0 V
Other than the above 5 V
5 When trip reset switch is pressed 0 V
Other than the above 5 V
6 When illumination control switch (+) is pressed 0 V
Other than the above 5 V
Combination meter Meter control switch Continuity
Connector Terminal Connector Terminal
M26 41
M158 5
Ye s
42 7
47 6
48 4
Combination meter GroundContinuity
Connector Terminal
M26 41
No
42
47
48
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MWI
METER CONTROL SWITCH SIGNAL CIRCUITMWI-69
< DTC/CIRCUIT DIAGNOSIS >
C
D E
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Component InspectionINFOID:0000000009461734
1.CHECK METER CONTROL SWITCH
1. Turn ignition switch OFF.
2. Disconnect meter control switch connector.
3. Check meter control switch.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace meter control switch. Refer to IP-14, "Exploded View"
.
Meter control switch
Condition Continuity
Te r m i n a l s
7
4When illumination control switch (
−) is pressed Yes
Other than the above No
5 When trip reset switch is pressed Yes
Other than the above No
6 When illumination control switch (+) is pressed Yes
Other than the above No
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM
Page 3325 of 4801

MWI-70
< DTC/CIRCUIT DIAGNOSIS >
STEERING SWITCH
STEERING SWITCH
DescriptionINFOID:0000000009461735
When one of the steering switches is pushed, the resistance in the steering switch changes the signal to
identify which button is controlling the information display.
Diagnosis ProcedureINFOID:0000000009461736
Regarding Wiring Diagram information, refer to MWI-32, "Wiring Diagram".
1.CHECK STEERING SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter harness connector M24 and spiral cable harness connector M30.
3. Check continuity between combination meter har ness connector M24 and spiral cable harness connector
M30.
4. Check continuity between combination meter harness connector M24 and ground.
Is the inspection results normal?
YES >> Inspection End.
NO >> Repair or replace harness or connectors.
Component InspectionINFOID:0000000009461737
1.CHECK STEERING SWITCH RESISTANCE
Check resistance between the following steering switch terminals.
Is the inspection results normal?
YES >> GO TO 2.
NO >> Replace steering wheel switch. Refer to AV-51, "Removal and Installation"
.
Combination meter Spiral cable
Continuity
Connector Terminal Connector Terminal
M24 3
M30 24
Ye s
431
24 33
Combination meter GroundContinuity
Connector Terminal
M24 3
No
4
24
Terminal Signal name Condition Resistance (
Ω)
(Approx.)
14
17 Display Depress DISPLAY switch.
†2023
Back Depress BACK switch. 723
15 Enter Depress ENTER switch. 2023
Menu Up Depress ENTER switch up. 121
Menu Down Depress ENTER switch down. 321
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MWI
STEERING SWITCHMWI-71
< DTC/CIRCUIT DIAGNOSIS >
C
D E
F
G H
I
J
K L
M B
A
O P
2.CHECK SPIRAL CABLE
Check continuity between the fo llowing spiral cable terminals.
Is the inspection results normal?
YES >> Inspection End.
NO >> Replace spiral cable. Refer to SR-15, "Removal and Installation"
.
Terminals Continuity
14 24
Ye s
15 31
17 33
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Page 3327 of 4801

MWI-72
< SYMPTOM DIAGNOSIS >
THE FUEL GAUGE INDICATOR DOES NOT OPERATE
SYMPTOM DIAGNOSIS
THE FUEL GAUGE INDICATOR DOES NOT OPERATE
DescriptionINFOID:0000000009461738
Fuel gauge will not indicate from a certain position.
Diagnosis ProcedureINFOID:0000000009461739
1.CHECK COMBINATION METER INPUT SIGNAL
Perform component function check. Refer to MWI-61, "Component Function Check"
.
Does monitor value match fuel gauge reading?
YES >> GO TO 2.
NO >> Replace combination meter. Refer to MWI-82, "Removal and Installation"
.
2.CHECK FUEL LEVEL SENSOR UNIT CIRCUITS
Check the fuel level sensor circuits. Refer to MWI-61, "Diagnosis Procedure"
.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3.CHECK FUEL LEVEL SENSOR UNIT
Perform a unit check for the fuel level sensor unit. Refer to MWI-62, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace fuel level sensor unit. Refer to FL-6, "Removal and Installation"
.
4.CHECK FLOAT INTERFERENCE
Check that the float arm does not interfere with or binds to other components in the fuel tank.
Is the inspection result normal?
YES >> Replace combination meter. Refer to MWI-82, "Removal and Installation".
NO >> Repair or replace malfunctioning parts.
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MWI
THE METER CONTROL SWITCH IS INOPERATIVEMWI-73
< SYMPTOM DIAGNOSIS >
C
D E
F
G H
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K L
M B
A
O P
THE METER CONTROL SWITCH IS INOPERATIVE
DescriptionINFOID:0000000009461740
The meter control switches are inoperative when pressed.
Diagnosis ProcedureINFOID:0000000009461741
1.CHECK METER CONTROL SWITCH SIGNAL
Check the meter control switch signal. Refer to MWI-68, "Diagnosis Procedure"
.
Is the inspection results normal?
YES >> GO TO 2.
NO >> Repair or replace harness or connectors.
2.CHECK METER CONTROL SWITCH
Perform a unit check for the meter control switch. Refer to MWI-69, "Component Inspection"
.
Is the inspection results normal?
YES >> Replace combination meter. Refer to MWI-82, "Removal and Installation".
NO >> Replace meter control switch. Refer to IP-14, "Exploded View"
.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM