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TRANSMISSION CONTROL SYSTEM (4L30–E) 7A1–51 DTC P0722 Automatic Transmission Output Speed Sensor (OSS) Low Input (Cont’d) Step No Yes Action 7 1. Reconnect the S (RED) PCM connector. harness connector terminals M15–2 and M15–1. Is the reading between 4.0 to 5.1 volts? Go to Step 16 Go to Step 10 8 1. Remove the OSS. misalignment. Refer to Speed Sensor (Extension Housing) in Was a problem found? Go to Step 17 Go to Step 9 9 Replace the OSS. Is the replacement complete? Go to Step 17 — 10 Was the reading in step 7 less than 4.0 volts? Go to Step 12 Go to Step 11 11 Was the reading in Step 7 greater than 5.1 volts? Go to Step 15 — 12 Using the J 39200 DVOM to chassis ground, measure the voltage Is the reading between 4.0 to 5.1 volts? Go to Step 13 Go to Step 14 13 Repair the open in circuit WHT. Is the repair complete? Go to Step 17 — 14 Check circuit RED for a short to ground or open. Was a problem found and corrected? Go to Step 17 Go to Step 16 15 Repair the short to B+ in circuit RED. Is the repair complete? Go to Step 17 — 16 Replace the PCM. Refer to Powertrain Control Module (PCM) in Is the replacement complete? Go to Step 17 — 17 1. After the repair is complete, use the scan tool to select “DTC”, then “Clear Info” function and operate the vehicle under the 2. Review the scan tool “DTC Info”. Has the last test failed or is the current DTC displayed? Begin diagnosis again Go to Step 1 Repair verified |