Mazda 6 Service Manual: Dtc 21

Inspection of dtcs for operation mode

Note The cruise set indicator light will illuminate for 3 seconds? when operation mode is on. If the cruise set indicator light does not illuminate for 3 seconds (Operation mode is not on) ...

Dtc 22

Diagnostic procedure ...

Other materials:

Mazda 6 Service Manual: Intermittent concern troubleshooting
  Vibration Method 1. If malfunction occurs or becomes worse while driving on a rough road or when engine is vibrating, perform the steps below. Note There are several reasons vehicle or engine vibration could cause an electrical malfunction. Some of the things to check for are: ...

Mazda 6 Service Manual: Electrical troubleshooting tools
Jumper wire A jumper wire is used to create a temporary circuit. Connect the jumper wire between the terminals of a circuit to bypass a switch. Caution Do not connect a jumper wire from the power source line to a body ground. This may cause burning or other damage to wiring harnesse ...