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Mazda RX-7

Cruise control parameters

The Mazda RX-7 has 4 cruise control parameters.

● Confirmed◆ In testing○ Supported× Not supported

How to read a parameter card

Cruise control speed MAZDA_CC_S

  • Request21 21
  • Service 21PID 21
  • Module7E0 → 7E8
  • Every250 ms
  • Testing

Bits 8 to 15 of the reply, 8 bits.

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

In testing for 1988 to 2002.

  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.

Cruise control speed MAZDA_CC_S

  • Request21 21
  • Service 21PID 21
  • Module7E0 → 7E8
  • Every250 ms
  • Testing

Bits 8 to 15 of the reply, 8 bits.

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

In testing for 1988 to 2002.

Cruise control voltage MAZDA_SCCS_V

0.0V = On/Off Switch depressed, 1.1V = Cancel depressed, 3.1V = Set/- switch depressed, 4.2V = Res/+ switch depressed, 5.0V = Normal

  • Request22 A2 16
  • Service 22DID A216
  • Module7E0 → 7E8
  • Every1 s
  • Testing

Bits 0 to 15 of the reply, 16 bits.

Formula
(val × 5 ÷ 65535)
Range
0 to 5 V
Unit
V

In testing for 1988 to 2002.

Distance from bumper to target MAZDA_CC_TGT_DIST

  • Request22 D9 01
  • Service 22DID D901
  • Module793 → 79B
  • Every250 ms
  • Testing

Bits 8 to 15 of the reply, 8 bits.

Formula
(val ÷ 4)
Range
0 to 63.75 m
Unit
m

In testing for 1988 to 2002.

Target vehicle speed MAZDA_CC_TGT_VSS

The speed of the vehicle ahead of you.

  • Request22 A2 24
  • Service 22DID A224
  • Module764 → 76C
  • Every250 ms
  • Testing

Bits 0 to 15 of the reply, 16 bits. The value is signed.

Formula
(val × 3.6 ÷ 10)
Range
-736 to 736 km/h
Unit
km/h

In testing for 1988 to 2002.

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