Operation CHARM: Car repair manuals for everyone.

92 - PTS Sensor 9 Performance Or Incorrect Operation






B1296-92 - PTS Sensor 9 Performance Or Incorrect Operation






For a complete wiring diagram, refer to.

The numbering system for the park assist sensors allows for up to twelve sensors on the vehicle, six front and six rear. the sensors are numbered in a clockwise manner starting at the left front bumper. The left front sensor (if equipped with front park assist) is the number 1 sensor. The numbering continues in a clockwise direction around the vehicle. This vehicle uses only four rear sensors, sensor numbers 7 and 12 are omitted, so the left rear sensor is the number 11 sensor.

When Monitored: During Reverse and during self test in Forward between 11 mph (18 km/h) and 25 mph (40 km/h).

Set Condition: If the system detects data corruption in the transmission in the internal communication line between the module and sensors.






Test Step 1 - Test for an Intermittent Condition

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.

Does the scan tool display B1235 - PTS Sensor 9 Circuit Performance?

Yes

Go to Test Step 2

No

The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.

Perform the Body Verification Test. Refer to=> Non-DTC Based Diagnostics. Body Interior

Test Step 2 - Check Park Assist Sensor No. 9 For Internal Short

Disconnect park assist sensor No. 9.

With the scan tool, read park assist module DTCs.

Does the scan tool display this DTC as active?

Yes

Go to Test Step 3

No

Replace park assist sensor No. 9. .

Perform the Body Verification Test. Refer to=> Non-DTC Based Diagnostics. Body Interior

Test Step 3 - Check the Park Assist Sensor No. 9 Signal Circuit for a Short to Ground






Turn the ignition OFF.

Disconnect the park assist module harness connectors C1 and C2.

Using a 12 volt test lamp connected to 12 volts check the park assist sensor No. 9 signal circuit at the park assist module C2 harness connector.

Does the test lamp illuminate brightly?

Yes

Repair the park assist sensor No. 9 signal circuit for a short to ground.

Perform the Body Verification Test. Refer to=> Non-DTC Based Diagnostics. Body Interior

No

Go to Test Step 4

Test Step 4 - Check the Park Assist Sensor No. 9 Signal Circuit for a Short to Battery






Turn the ignition ON.

Using a 12 volt test lamp connected to ground check the park assist sensor No. 9 signal circuit at the park assist module C2 harness connector for a short to battery.

Does the test lamp illuminate brightly?

Yes

Repair the park assist sensor No. 9 signal circuit for a short to battery.

Perform the Body Verification Test. Refer to=> Non-DTC Based Diagnostics. Body Interior

No

Go to Test Step 5

Test Step 5 - Check the Park Assist Sensor No. 9 Signal Circuit for an Open






Measure the resistance of the park assist sensor No. 9 signal circuit between the park assist module C2 harness connector and the park assist sensor No. 9 harness connector.

Is the resistance less than 5.0 ohms?

No

Repair the park assist sensor No. 9 signal circuit for an open.

Perform the Body Verification Test. Refer to=> Non-DTC Based Diagnostics. Body Interior

Yes

Replace the park assist module. .

Perform the Body Verification Test. Refer to=> Non-DTC Based Diagnostics. Body Interior