Pelican
Get the app

Chevrolet Impala

Connectable parameters

The Chevrolet Impala has 24 Connectables, parameters that Pelican can monitor automatically.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Vehicle speed IMPALA_VSSConfirmed

Pelican can show this parameter as the speed.

  • Request22 00 0D
  • Service 22DID 000D
  • Module7E0 → 7E8
  • Every250 ms
  • Testing for 1988 to 1996, 2000 to 2006, 2008 to 2010, 2012, 2015

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → 0 km/h

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

Confirmed for 2007, 2011, 2013 to 2014, 2016 to 2020. In testing for 1988 to 1995, 2000 to 2002, 2004 to 2006, 2008 to 2010, 2012, 2015. Not supported for 1996, 2003.

  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.

Fuel tank level

Fuel remaining IMPALA_FLI

Pelican can show this parameter as the fuel tank level.

  • Request22 00 2F
  • Service 22DID 002F
  • Module7E0 → 7E8
  • Every30 s
  • Testing

Bits 0 to 7 of the reply, 8 bits.

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

In testing for 1988 to 1996, 2000 to 2020.

Fuel tank level FLISAE J1979Confirmed

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
%

Confirmed for 2007, 2011, 2013 to 2014, 2016 to 2018. Supported for 1996, 2019 to 2020.

Speed

Vehicle speed IMPALA_VSSConfirmed

Pelican can show this parameter as the speed.

  • Request22 00 0D
  • Service 22DID 000D
  • Module7E0 → 7E8
  • Every250 ms
  • Testing for 1988 to 1996, 2000 to 2006, 2008 to 2010, 2012, 2015

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x00 = 0 → 0 km/h

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

Confirmed for 2007, 2011, 2013 to 2014, 2016 to 2020. In testing for 1988 to 1995, 2000 to 2002, 2004 to 2006, 2008 to 2010, 2012, 2015. Not supported for 1996, 2003.

Vehicle speed VSSSAE J1979Confirmed

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

Confirmed for 2007, 2011, 2013 to 2014, 2016 to 2017. Supported for 1996, 2018 to 2020.

CheckEngineLightOn

Malfunction indicator lamp MILSAE J1979Confirmed

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

Confirmed for 2007, 2013. Supported for 1996, 2011, 2014, 2016 to 2020.

Commanded lambda

Commanded equivalence ratio EQ_RATSAE J1979Confirmed

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

Confirmed for 2007, 2011, 2013 to 2014, 2017, 2019.

Distance since trouble codes were cleared

Distance traveled since diagnostic trouble codes cleared CLR_DISTSAE J1979Confirmed

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

Confirmed for 2007, 2011, 2013 to 2014, 2016 to 2019. Supported for 2020.

Engine coolant temperature

Engine coolant temperature ECTSAE J1979Confirmed

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

Confirmed for 2007, 2011, 2013 to 2014, 2017, 2019. Supported for 1996, 2016, 2018, 2020.

Engine load

Calculated engine load LOAD_PCTSAE J1979Confirmed

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
%

Confirmed for 2007, 2011, 2013 to 2014, 2017, 2019. Supported for 1996, 2016, 2018, 2020.

Engine oil temperature

Calculated engine oil temperature IMPALA_EOT_CALCConfirmed

Pelican can show this parameter as the engine oil temperature.

  • Request22 11 54
  • Service 22DID 1154
  • Module7E0 → 7E8
  • Every1 s
  • Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x77 = 119 → (119 − 40) = 79 °C

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

Confirmed for 2017, 2020. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019.

Engine oil temperature IMPALA_EOT

Pelican can show this parameter as the engine oil temperature.

  • Request22 00 5C
  • Service 22DID 005C
  • Module7E0 → 7E8
  • Every5 s
  • Testing

Bits 0 to 7 of the reply, 8 bits.

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

In testing for 1988 to 1996, 2000 to 2020.

Mass air flow

Air flow rate from mass air flow sensor MAFSAE J1979Confirmed

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

Confirmed for 2007, 2011, 2013 to 2014, 2017, 2019. Supported for 1996, 2016, 2018, 2020.

Mass airflow sensor IMPALA_MAFConfirmed

Pelican can show this parameter as the mass air flow.

  • Request22 00 10
  • Service 22DID 0010
  • Module7E0 → 7E8
  • Every1 s
  • Testing for 1988 to 1996, 2000 to 2016, 2018 to 2020

Example reply from a 2017 Chevrolet Impala.

Bits 0 to 15 of the reply, 16 bits.

0x017B = 379 → (379 × 100 ÷ 10000) = 3.79 g/s

Formula
(val × 100 ÷ 10000)
Range
0 to 655.35 g/s
Unit
g/s

Confirmed for 2017. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2020.

Short term fuel trim

Short term fuel trim (bank 1) SHRTFT1SAE J1979Confirmed

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
%

Confirmed for 2007, 2011, 2013, 2017. Supported for 1996, 2014, 2016, 2018 to 2020.

Short term fuel trim (bank 2) SHRTFT2SAE J1979Confirmed

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
%

Confirmed for 2013, 2017. Supported for 1996, 2014, 2016, 2018 to 2020.

Starter battery voltage

Control module voltage VPWRSAE J1979Confirmed

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

Confirmed for 2007, 2011, 2013 to 2014, 2016 to 2017. Supported for 1996, 2018.

Ignition 1 voltage IMPALA_IGN_1_V

Pelican can show this parameter as the starter battery voltage.

  • Request22 11 41
  • Service 22DID 1141
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bits 0 to 7 of the reply, 8 bits.

Formula
(val ÷ 10)
Range
0 to 25.5 V
Unit
V

In testing for 1988 to 1996, 2000 to 2020.

StoredDTCCount

Number of DTCs stored in this ECU DTC_CNTSAE J1979Confirmed

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

Confirmed for 2007, 2013. Supported for 1996, 2011, 2014, 2016 to 2020.

Throttle position

Absolute throttle position TPSAE J1979Confirmed

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
%

Confirmed for 2007, 2011, 2013, 2017. Supported for 1996, 2014, 2016, 2018 to 2020.

Absolute throttle position B TP_BSAE J1979Confirmed

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
%

Confirmed for 2007, 2011, 2013, 2019.

Transmission fluid temperature

Transmission fluid temperature IMPALA_ATF_TConfirmed

Pelican can show this parameter as the transmission fluid temperature.

  • Request22 19 40
  • Service 22DID 1940
  • Module7E2 → 7EA
  • Every1 s
  • Testing for 1988 to 1996, 2000 to 2016, 2018 to 2019

Example reply from a 2017 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x77 = 119 → (119 − 40) = 79 °C

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

Confirmed for 2017. In testing for 1988 to 1996, 2000 to 2016, 2018 to 2019. Supported for 2020.

Transmission fluid temperature, filtered IMPALA_TF_T_FLTED

Pelican can show this parameter as the transmission fluid temperature.

  • Request22 29 5A
  • Service 22DID 295A
  • Module7E2 → 7EA
  • Every5 s
  • Testing

Bits 0 to 7 of the reply, 8 bits.

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

In testing for 1988 to 1996, 2000 to 2020.

Transmission fluid temperature, variant 1 IMPALA_ATF_T_VAR_1Confirmed

Pelican can show this parameter as the transmission fluid temperature.

  • Request22 19 40
  • Service 22DID 1940
  • Module7E0 → 7E8
  • Every5 s
  • Testing for 1988 to 1996, 2000 to 2019

Example reply from a 2020 Chevrolet Impala.

Bits 0 to 7 of the reply, 8 bits.

0x75 = 117 → (117 − 40) = 77 °C

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

Confirmed for 2020. In testing for 1988 to 1996, 2000 to 2019.

Transmission fluid temperature, variant 6 IMPALA_ATF_T_VAR_6

Pelican can show this parameter as the transmission fluid temperature.

  • Request22 28 0D
  • Service 22DID 280D
  • Module7E2 → 7EA
  • Every5 s
  • Testing

Bits 0 to 7 of the reply, 8 bits.

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

In testing for 1988 to 1996, 2000 to 2020.

Start your test drive today.

Download Pelican on the App Store

See all featuresCompare plansJoin the beta crew

Keyboard shortcuts

jk/↓↑
Move down or up through a list or a grid.
hl/←→
Move across a row or between cards.
Enter
Open the focused link.
f
Open the current focus area's filter.
↓
In a filter, move to the first result.
Esc
Close a filter or a dialog.
?
Show these shortcuts.