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Home >> Nissan-Datsun >> 2012 >> Altima Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter, Warning Lamp & Indicator >> Ecu Diagnosis Information >> Combination Meter >> Reference Value >> Physical Values

Physical Values

Terminal Wire color Item Condition Reference value (V) (Approx.)
Ignition switch Operation or condition
1 W/L Battery power supply - - Battery voltage
2 O Ignition switch ON or START ON - Battery voltage
3 B Ground (Power) - - 0
4 B Ground (Illumination)
5 R/Y Illumination output - - Refer to "SYSTEM DESCRIPTION ".
9 GR/W Illumination switch power - -
10 O/L Mode switch ground ON - 0
11 L/R Mode switch A ON Switch pressed 0
Switch released 5
12 B/R Mode switch B ON Switch pressed 0
Switch released 5
14 V/Y Ignition switch ACC or ON ON - Battery voltage
15 BR/W Air bag warning lamp input ON Air bag warning lamp ON 3
Air bag warning lamp OFF 0
16 G/W Water temperature output ON At idle [after warming up, approx. 80°C (176°F)]
NOTE: The wave forms vary depending on coolant temperature.
G05692580
17 R/W AC PD CUT ON Signal ON 0
Signal OFF 5
18 O/B Ambient sensor signal ON - 0 - 5 (Based on ambient temperature)
19 P Ambient sensor VDD ON - 5
20 B/Y Ambient sensor ground ON - 0
21 L CAN-H - - -
22 P CAN-L - - -
23 B Ground (Circuit) - - 0
24 B/W Fuel level sensor ground ON - 0
25 BR Generator ON Generator voltage low 0
Generator voltage normal Battery voltage
26 G/R Parking brake switch ON Parking brake depressed 0
Parking brake released Battery voltage
27 V Brake fluid level switch ON Brake fluid level low 0
Brake fluid level normal Battery voltage
28 L/O Security indicator input OFF Security indicator ON 0
Security indicator OFF Battery voltage
29 R Washer fluid level switch ON Washer fluid level low 0
Washer fluid level normal Battery voltage
30 L/B Vehicle speed signal output (2-pulse) ON Speedometer operated [When vehicle speed is approx. 20 km/h (12 MPH)] 240 Hz
31 V/W Vehicle speed signal output (8-pulse) ON Speedometer operated [When vehicle speed is approx. 40 km/h (25 MPH)]
NOTE: Maximum voltage may be 12V due to specifications (connected units).
G04889729
34 G/B Fuel level sensor signal - - Refer to "FUEL GAUGE: SYSTEM DESCRIPTION ".
35 W/B Seat belt buckle switch LH ON Unfastened (ON) 0
Fastened (OFF) Battery voltage
36 L/W Seat belt buckle switch RH ON Unfastened (ON) 0
Fastened (OFF) Battery voltage
37 G Not M range ON Manual mode switch OFF 0
Manual mode switch ON Battery voltage
38 BR CVT shift down ON
  • Manual mode switch ON
  • Shift down operation
0
Other than above Battery voltage
39 W CVT shift up ON
  • Manual mode switch ON
  • Shift up operation
0
Other than above Battery voltage
40 LG/R M range ON Manual mode switch OFF Battery voltage
Manual mode switch ON 0