Diagnostic Information and Procedures: Reference
Oscilloscope waveforms of CMP sensor (1) and No.1 ignition trigger signal (2) are as shown in figure when connecting oscilloscope between terminals "C46-14" of ECM connectors connected to ECM and ground, and between terminal "C45-4" and ground.
Measurement condition for waveform [A]
WAVEFORM (A) MEASUREMENT CONDITION SPECIFICATION
| Measurement terminal | CH1: "C45-4" to "C45-6" CH2: "C46-14" to "C45-6"> |
| Oscilloscope setting | CH1: 1 V/DID, CH2: 5 V/DID Time: 40 ms/DID |
| Measurement condition | After warmed up engine to normal operating temperature (ECT approx. 95 °C, 203 °F) Engine at 750 r/min. |
Measurement condition for waveform FBI
WAVEFORM (B) MEASUREMENT CONDITION SPECIFICATION
| Measurement terminal | CH1: "C45-4" to "C45-6" CH2: "C46-14" to "C45-6"> |
| Oscilloscope setting | CH1: 1 V/DIV, CH2: 5 V/DIV Time: 1 ms/DIV |
| Measurement condition | After warmed up engine to normal operating temperature (ECT approx. 95 °C, 203 °F) Engine at 750 r/min. |