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AUTOMATIC TRANSAXLE DIAGNOSIS TSB Revision AUTOMATIC TRANSAXLE 23A-195 STEP 3. Using the oscilloscope, check the waveform at (2) Connect an oscilloscope probe to PCM connector C-40 terminal 57 and to PCM connector C-42 terminal 103 by (3) Start the engine and run at constant speed of 50km/h (31mph). (Gear range: 3rd gear) (4) Check the waveform. • The waveform should show a pattern similar to the (5) Turn the ignition switch to "LOCK" (OFF) position. Q: Is the waveform normal? YES : Go to Step 8. AC004197 PCM C-40 C-42 CONNECTORS: C-40, C-42 AE AC001899 C-42 CONNECTOR HARNESS SIDE VIEW C-40 CONNECTOR HARNESS SIDE VIEW AE OSCILLO- PROBE ACX02131AB NORMAL WAVEFORM (V) 5 0 |