Electric variable valve timing driver (diagnostic) signal

Fig 1: Electric Variable Valve Timing Driver (Diagnostic) Output Voltage Signal Graph

Courtesy of MAZDA MOTORS CORP.

PCM terminals 

• 1AD (+) -body ground (-)

Oscilloscope setting 

• 2 V/DIV (Y), 100 ms/DIV (X), DC range

Vehicle condition 

• Idle (after warm up)