Set up an oscilloscope as follows :
Channel A (+): Signal terminal of the CMPS
Is the signal waveform normal?
 | ▶ Check for poor connection between PCM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
 | ▶ Remove CKP and calculate air gap between sensor and flywheel/torque converter. Readjust as necessary and go to "Verification of Vehicle Repair" procedure note Air gap [0.3~1.7 mm [0.012~0.067 in] = measure distance from housing to teeth on flywheel/torque converter (measurement "A") and from mounting surface on sensor to sensor tip (measurement "B") subtract "B" from "A" ▶ If air gap is OK, check CKPS for contamination, deterioration, or damage. Substitute with a known-good CKPS and check for proper operation. If the problem is corrected, replace CKPS and then go to "Verification of Vehicle Repair" procedur. |
