Workshop Manual

TRANSMISSION CONTROL SYSTEM (4L30–E)
7A1–47
DTC P0722 Automatic Transmission Output Speed Sensor (OSS) Low Input (Cont’d)
Step NoYesAction
13 Repair the open in circuit BLU/GRN.
Is the repair complete?
Go to Step 17 —
14 Check circuit BLU/YEL 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 BLU/YEL.
Is the repair complete?
Go to Step 17 —
16 Replace the PCM. Refer to Powertrain Control Module (PCM) in
automatic Transmission (4L30–E) section.
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
following conditions:
Transmission output speed is greater than 101 rpm for 3
seconds.
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
Exit DTC table