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2001 Toyota Highlander, ECM/Inputs/Outputs waveform
CH A is B2S1 heater voltage; CH B is B1S1 heater current. I took this shot of both sensors at the same time to illustrate that B1 and B2 heater controls operate independently of each other. Note the current waveform pulse width (B1) doesn't correspond exactl...
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| Engine | 2.4 L / 4 cyl / GAS |
| Trans | 4-speed AutomaticTransaxle (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | Other |
| Condition | Known Good |
References
Vehicle Data
2001 Toyota Highlander 2.4L
| Engine | 2.4 L / 4 cyl / GAS |
| Trans | 4-speed AutomaticTransaxle (Electronic) |
| Delivery | Fuel Injection |
| Subsystem | ECM/Inputs/Outputs |
| Component | Other |
| Condition | Known Good |
Video