B1251

B1251-PTS SENSOR 3 RING TIME TOO SHORT

WHEN MONITORED
While the vehicle is in reverse or neutral for speeds less than 16km/h.

SET CONDITION
Sensor ring down time exceeds limit (greater than 1450 microsecs).

POSSIBLE CAUSES
- Park assist sensor No. 3

DIAGNOSTIC TEST

1. CHECK FOR ACTIVE DTC: B1251-PTS SENSOR 3 RING TIME TOO SHORT
Turn the ignition on.
Apply the vehicle park brake.
Shift the transmission into Reverse.
With the scan tool, record and erase Park Assist Module DTCs.
Wait 30 seconds.
With the scan tool, read Park Assist Module DTCs.

Q: Is DTC: B1251-PTS SENSOR 3 RING TIME TOO SHORT active?

YES: Go To 2
NO: The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
Perform BODY VERIFICATION TEST VER 1. Body Verification Test

2. REPLACE PARK ASSIST SENSOR NO. 3

View Repair

Repair
Replace Park Assist Sensor No. 3.
Perform BODY VERIFICATION TEST VER 1. Body Verification Test