Mazda CX-7 2007 Workshop Manual page 571

Generator field coil control signal
PCM terminals
• 2AI (+)— body ground (–)
Oscilloscope setting
• 0.5 V/DIV (Y), 2 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up (engine speed approx. 650
rpm, no load)
Generator output voltage signal
PCM terminals
• 2AJ (+)— body ground (–)
Oscilloscope setting
• 2 V/DIV (Y),1 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up (no load, P/S off, A/C off)
IGT1, IGT2, IGT3, IGT4 control signals
PCM terminals
• IGT1 (No.1): 2BA (+)— body ground (–)
• IGT2 (No.2): 2AW (+)— body ground (–)
• IGT3 (No.3): 2AX (+)— body ground (–)
• IGT4 (No.4): 2AT (+)— body ground (–)
Oscilloscope setting
• 2 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up (no load, P/S off, A/C off)
Fuel injection control (–)
PCM terminals
• Fuel injection No.1: 2BB (+)— body ground (–)
• Fuel injection No.2: 2BC (+)— body ground (–)
• Fuel injection No.3: 2BD (+)— body ground (–)
• Fuel injection No.4: 2AZ (+)— body ground (–)
Oscilloscope setting
• 10 V/DIV (Y), 20 ms/DIV (X), DC range
Vehicle condition
• Idle after warm up (no load, P/S off, A/C off)
CONTROL SYSTEM [L3 WITH TC]
0 V
0 V
ov
0 V
01-40
ampjjw00001528
ampjjw00001529
ampjjw00000781
acxuuw00002326
01-40–15