SAE J1979

Connectable parameters

The SAE J1979 standard has 26 Connectables, parameters that Pelican can monitor automatically.

How to read a parameter card

Hybrid battery pack remaining charge BAT_SOC

The percent remaining level of charge for a battery pack used for propulsion, expressed as a percentage of total useable battery energy, commonly referred to as State Of Charge (SOC).

Pelican can show this parameter as the state of charge.

  • Request01 5B
  • Service 01PID 5B
  • Module7E0 → 7E8
  • Every1 s

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%
  1. The parameter's name and its ID in the OBDb. Confirmed shows when a response from a real car confirms the parameter.
  2. The clutch mark shows a Connectable, a parameter that Pelican surfaces in its interface.
  3. The service and PID/DID asked for, the control module it's sent to, and how often Pelican asks.
  4. The reply's bytes. The parameter's bytes are blue. Bytes for other parameters in the same reply are grayed out. Hover over a byte to see the parameter it represents.
  5. Where the parameter is in the response, and how Pelican converts the raw value into a value.
  6. A real reply, decoded. The raw value comes first, then the reading.
  7. Which model years have tested this parameter.

State of charge

Hybrid battery pack remaining charge BAT_SOC

The percent remaining level of charge for a battery pack used for propulsion, expressed as a percentage of total useable battery energy, commonly referred to as State Of Charge (SOC).

Pelican can show this parameter as the state of charge.

  • Request01 5B
  • Service 01PID 5B
  • Module7E0 → 7E8
  • Every1 s

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

State of health

State of certified energy SOCE

Estimation of the battery's certified usable energy.

Pelican can show this parameter as the state of health.

  • Request01 D2
  • Service 01PID D2
  • Module7E0 → 7E8
  • Every300 s

Bits 8 to 15 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

State of certified range SOCR

Estimation of the battery's certified usable range. This is a best-effort representation of the degradation of components that contribute to the range of the vehicle.

Pelican can show this parameter as the state of health.

  • Request01 D2
  • Service 01PID D2
  • Module7E0 → 7E8
  • Every300 s

Bits 16 to 23 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

Fuel tank level

Fuel tank level FLI

Pelican can show this parameter as the fuel tank level.

  • Request01 2F
  • Service 01PID 2F
  • Module7E0 → 7E8
  • Every1 s

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

Speed

Vehicle speed VSS

Pelican can show this parameter as the speed.

  • Request01 0D
  • Service 01PID 0D
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
val
Range
0 to 255 km/h
Unit
km/h

Odometer

Odometer ODO

Pelican can show this parameter as the odometer.

  • Request01 A6
  • Service 01PID A6
  • Module7E0 → 7E8
  • Every1 s

Bits 0 to 31 of the reply, 32 bits.

Formula
(val ÷ 10)
Range
0 to 429496729.5 km
Unit
km

CheckEngineLightOn

Malfunction indicator lamp MIL

The MIL status is OFF during key-on, engine-off bulb check unless MIL has also been commanded ON for a detected malfunction. The status reflects whether there are confirmed DTC(s) stored that are illuminating the MIL. It should not reflect the status of the MIL, which could be on for a function check, flashing I/M readiness or flashing for misfire.

Pelican can show this parameter as the checkEngineLightOn.

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bit 0 of the reply.

Formula
val
Range
0 to 1
Unit
Off or on

Commanded lambda

Commanded equivalence ratio EQ_RAT

Fuel systems that utilize conventional oxygen sensor display the inverse of the commanded open loop equivalence ratio (also known as lambda) while the fuel control system is in open loop. Will indicate 1.000 while in closed-loop fuel.

Pelican can show this parameter as the commanded lambda.

  • Request01 44
  • Service 01PID 44
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula
(val × 2 ÷ 65535)
Range
0 to 1.99
Unit
Number

Distance since trouble codes were cleared

Distance traveled since diagnostic trouble codes cleared CLR_DIST

Distance accumulated since DTCs were cleared (via an external test equipment or possibly, a battery disconnect). This parameter is not associated with any particular DTC. It is simply an indication for inspection/maintenance, of the last time an external test equipment was used to clear DTCs. If greater than 65,535 km have occurred, will remain at 65,535 km and not wrap to zero.

Pelican can show this parameter as the distance since trouble codes were cleared.

  • Request01 31
  • Service 01PID 31
  • Module7E0 → 7E8
  • Every15 s

Bits 0 to 15 of the reply, 16 bits.

Formula
val
Range
0 to 65535 km
Unit
km

Engine coolant temperature

Engine coolant temperature ECT

Your engine temperature must operate within a certain temperature range to operate efficiently and safely. If it runs too hot, then your engine could be permanently damaged. If it runs too cold, then your engine will use more fuel than necessary.

Pelican can show this parameter as the engine coolant temperature.

  • Request01 05
  • Service 01PID 05
  • Module7E0 → 7E8
  • Every500 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
(val − 40)
Range
-40 to 215 °C
Unit
°C

Engine load

Calculated engine load LOAD_PCT

Represents the amount of work the engine is doing. Expected to reach 100% at wide open throttle/wide open pedal at any altitude, temperature or rpm for both naturally aspirated and boosted engines. If engine load is limited for powertrain protection e.g. engine/turbocharger protection, this value may not reach 100%. For hybrid vehicles, indicates the torque produced only by the internal combustion engine, not the torque being delivered by the entire powertrain. For electric vehicles, the meaning of this parameter is undefined.

Pelican can show this parameter as the engine load.

  • Request01 04
  • Service 01PID 04
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

Engine oil temperature

Engine oil temperature EOT

Pelican can show this parameter as the engine oil temperature.

  • Request01 5C
  • Service 01PID 5C
  • Module7E0 → 7E8
  • Every1 s

Bits 0 to 7 of the reply, 8 bits.

Formula
(val − 40)
Range
-40 to 210 °C
Unit
°C

Fuel rate

Engine fuel rate FUEL_RATE

Measured in units per hour

Pelican can show this parameter as the fuel rate.

  • Request01 5E
  • Service 01PID 5E
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 20)
Range
0 to 3212.75 L/h
Unit
L/h

Mass air flow

Air flow rate from mass air flow sensor MAF

Pelican can show this parameter as the mass air flow.

  • Request01 10
  • Service 01PID 10
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 100)
Range
0 to 655.35 g/s
Unit
g/s

Mass Air Flow Sensor A MAFA

Pelican can show this parameter as the mass air flow.

  • Request01 66
  • Service 01PID 66
  • Module7E0 → 7E8
  • Every250 ms

Bits 8 to 23 of the reply, 16 bits.

Formula
(val ÷ 32)
Range
0 to 2047.96875 g/s
Unit
g/s

Mass Air Flow Sensor B MAFB

Pelican can show this parameter as the mass air flow.

  • Request01 66
  • Service 01PID 66
  • Module7E0 → 7E8
  • Every250 ms

Bits 24 to 39 of the reply, 16 bits.

Formula
(val ÷ 32)
Range
0 to 2047.96875 g/s
Unit
g/s

O2 lambda

Lambda value, Equivalence Ratio Bank 1, Sensor 1 LAMBDA11_VOLT

Pelican can show this parameter as the O2 lambda.

  • Request01 24
  • Service 01PID 24
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 32768)
Range
0 to 1.99
Unit
Number

Lambda value, Equivalence Ratio Bank 1, Sensor 1 LAMBDA11_CURRENT

Pelican can show this parameter as the O2 lambda.

  • Request01 34
  • Service 01PID 34
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 32768)
Range
0 to 1.99
Unit
Number

Short term fuel trim

Short term fuel trim (bank 1) SHRTFT1

Correction being used by the closed-loop fuel algorithm.

Pelican can show this parameter as the short term fuel trim.

  • Request01 06
  • Service 01PID 06
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 128 − 100)
Range
-100 to 99.2 %
Unit
%

Short term fuel trim (bank 2) SHRTFT2

Correction being used by the closed-loop fuel algorithm.

Pelican can show this parameter as the short term fuel trim.

  • Request01 08
  • Service 01PID 08
  • Module7E0 → 7E8
  • Every1 s

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 128 − 100)
Range
-100 to 99.2 %
Unit
%

Starter battery voltage

Control module voltage VPWR

Power input to the OBD control module. VPWR is normally battery voltage, less any voltage drop in the circuit between the battery and the control module.

Pelican can show this parameter as the starter battery voltage.

  • Request01 42
  • Service 01PID 42
  • Module7E0 → 7E8
  • Every10 s

Bits 0 to 15 of the reply, 16 bits.

Formula
(val ÷ 1000)
Range
0 to 65535 V
Unit
V

StoredDTCCount

Number of DTCs stored in this ECU DTC_CNT

Number of confirmed emission-related DTCs stored in the ECU available for display using Service $03.

Pelican can show this parameter as the storedDTCCount.

  • Request01 01
  • Service 01PID 01
  • Module7E0 → 7E8
  • Every10 s

Bits 1 to 7 of the reply, 7 bits.

Formula
val
Range
0 to 127
Unit
Number

Throttle position

Absolute throttle position TP

Throttle position at idle will usually be more than 0%, and throttle position at wide open throttle will usually be less than 100%.

Pelican can show this parameter as the throttle position.

  • Request01 11
  • Service 01PID 11
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

Absolute throttle position B TP_B

Pelican can show this parameter as the throttle position.

  • Request01 47
  • Service 01PID 47
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

Absolute throttle position C TP_C

Pelican can show this parameter as the throttle position.

  • Request01 48
  • Service 01PID 48
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

Absolute Throttle Position G TP_G

Pelican can show this parameter as the throttle position.

  • Request01 8D
  • Service 01PID 8D
  • Module7E0 → 7E8
  • Every250 ms

Bits 0 to 7 of the reply, 8 bits.

Formula
(val × 100 ÷ 255)
Range
0 to 100 %
Unit
%

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