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Chime & Buzzer - Electrical Diagnostics: Other Jeep Commander I

Warning System 53 illustrations ~7067 words

Monitor Conditions

  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.

Set Conditions

  1. Set Condition: Sensor ring down time is too short (700 [micro] secs).

Possible Causes

Possible Causes
(D700) PARK ASSIST SENSOR NO. 7 SIGNAL CIRCUIT SHORTED TO (X750) PARK ASSIST SENSOR GROUND CIRCUIT
(D700) PARK ASSIST SENSOR NO. 7 SIGNAL CIRCUIT SHORTED TO (Z171) PARK ASSIST DISPLAY GROUND CIRCUIT
(D700) PARK ASSIST SENSOR NO. 7 SIGNAL CIRCUIT SHORTED TO (Z914) PARK ASSIST MODULE GROUND CIRCUIT
(D700) PARK ASSIST SENSOR NO. 7 SIGNAL CIRCUIT SHORTED TO GROUND
PARK ASSIST SENSOR NO. 7
PARK ASSIST MODULE

Scheme 13

Scheme 13: Diagnostic Test
Scheme 13: Diagnostic Test

Scheme 14

Scheme 14
Scheme 14

Scheme 15

Scheme 15
Scheme 15

Scheme 16

Scheme 16
Scheme 16

Scheme 17

Scheme 17
Scheme 17
  1. 1) CHECK FOR ACTIVE DTC: B122C-PTS SENSOR 7 CIRCUIT LOW 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. Is DTC: B122C-PTS SENSOR 7 CIRCUIT LOW 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»(ref-288232-S30638820392008062000000) .
  2. 2) CHECK PARK ASSIST SENSOR NO. 7 FOR A SHORT TO GROUND Shift the transmission into park. With the scan tool, erase DTCs. Turn the ignition off. Disconnect Park Assist Sensor No. 7. Turn the ignition on. Shift the transmission into reverse. With the scan tool, read Park Assist Module DTCs. Does the scan tool display: B122C-PTS SENSOR 7 CIRCUIT LOW? Yes Go to 3) . No Replace Park Assist Sensor No. 7 in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  3. 3) CHECK THE (D700) PARK ASSIST SENSOR NO. 7 SIGNAL CIRCUIT FOR A SHORT TO (X750) PARK ASSIST SENSOR GROUND CIRCUIT Turn the ignition off. Disconnect the Park Assist Module harness connector. Measure the resistance between the (D700) Park Assist Sensor No. 7 Signal circuit and the (X750) Park Assist Sensor Ground circuit. Is the resistance below 10K ohms? Yes Repair the (D700) Park Assist Sensor No. 7 Signal circuit for a short to the (X750) Park Assist Sensor Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 4) .
  4. 4) CHECK THE (D700) PARK ASSIST SENSOR NO. 7 SIGNAL CIRCUIT FOR A SHORT TO (Z171) PARK ASSIST DISPLAY GROUND CIRCUIT Measure the resistance between the (D700) Park Assist Sensor No. 7 Signal circuit and the (Z171) Park Assist Display Ground circuit. Is the resistance below 10K ohms? Yes Repair the (D700) Park Assist Sensor No. 7 Signal circuit for a short to the (Z171) Park Assist Display Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 5) .
  5. 5) CHECK THE (D700) PARK ASSIST SENSOR NO. 7 SIGNAL CIRCUIT FOR A SHORT TO (Z914) PARK ASSIST MODULE GROUND CIRCUIT Measure the resistance between the (D700) Park Assist Sensor No. 7 Signal circuit and the (Z914) Park Assist Module Ground circuit. Is the resistance below 10K ohms? Yes Repair the (D700) Park Assist Sensor No. 7 Signal circuit for a short to the (Z914) Park Assist Module Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 6) .
  6. 6) CHECK THE (D700) PARK ASSIST SENSOR NO. 7 SIGNAL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (D700) Park Assist Sensor No. 7 Signal circuit. Is the resistance below 10K ohms? Yes Repair the (D700) Park Assist Sensor No. 7 Signal circuit for a short to ground. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Replace the Park Assist Module in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time exceeds limit (greater than 1450 [micro] secs).
Possible Causes
PARK ASSIST SENSOR NO. 7
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Data line stuck at 0.
Possible Causes
PARK ASSIST SENSOR NO. 7
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time is too short (700 [micro] secs).
Possible Causes
(D701) PARK ASSIST SENSOR NO. 8 SIGNAL CIRCUIT SHORTED TO (X750) PARK ASSIST SENSOR GROUND CIRCUIT
(D701) PARK ASSIST SENSOR NO. 8 SIGNAL CIRCUIT SHORTED TO (Z171) PARK ASSIST DISPLAY GROUND CIRCUIT
(D701) PARK ASSIST SENSOR NO. 8 SIGNAL CIRCUIT SHORTED TO (Z914) PARK ASSIST MODULE GROUND CIRCUIT
(D701) PARK ASSIST SENSOR NO. 8 SIGNAL CIRCUIT SHORTED TO GROUND
PARK ASSIST SENSOR NO. 8
PARK ASSIST MODULE

Scheme 18

Scheme 18: Diagnostic Test
Scheme 18: Diagnostic Test

Scheme 19

Scheme 19
Scheme 19

Scheme 20

Scheme 20
Scheme 20

Scheme 21

Scheme 21
Scheme 21

Scheme 22

Scheme 22
Scheme 22
  1. 1) CHECK FOR ACTIVE DTC: B1231-PTS SENSOR 8 CIRCUIT LOW 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. Is DTC: B1231-PTS SENSOR 8 CIRCUIT LOW 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»(ref-288232-S30638820392008062000000) .
  2. 2) CHECK PARK ASSIST SENSOR NO. 8 FOR A SHORT TO GROUND Shift the transmission into park. With the scan tool, erase DTCs. Turn the ignition off. Disconnect Park Assist Sensor No. 8. Turn the ignition on. Shift the transmission into reverse. With the scan tool, read Park Assist Module DTCs. Does the scan tool display: B1231-PTS SENSOR 8 CIRCUIT LOW? Yes Go to 3) . No Replace Park Assist Sensor No. 8 in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  3. 3) CHECK THE (D701) PARK ASSIST SENSOR NO. 8 SIGNAL CIRCUIT FOR A SHORT TO (X750) PARK ASSIST SENSOR GROUND CIRCUIT Turn the ignition off. Disconnect the Park Assist Module harness connector. Measure the resistance between the (D701) Park Assist Sensor No. 8 Signal circuit and the (X750) Park Assist Sensor Ground circuit. Is the resistance below 10K ohms? Yes Repair the (D701) Park Assist Sensor No. 8 Signal circuit for a short to the (X750) Park Assist Sensor Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 4) .
  4. 4) CHECK THE (D701) PARK ASSIST SENSOR NO. 8 SIGNAL CIRCUIT FOR A SHORT TO (Z171) PARK ASSIST DISPLAY GROUND CIRCUIT Measure the resistance between the (D701) Park Assist Sensor No. 8 Signal circuit and the (Z171) Park Assist Display Ground circuit. Is the resistance below 10K ohms? Yes Repair the (D701) Park Assist Sensor No. 8 Signal circuit for a short to the (Z171) Park Assist Display Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 5) .
  5. 5) CHECK THE (D701) PARK ASSIST SENSOR NO. 8 SIGNAL CIRCUIT FOR A SHORT TO (Z914) PARK ASSIST MODULE GROUND CIRCUIT Measure the resistance between the (D701) Park Assist Sensor No. 8 Signal circuit and the (Z914) Park Assist Module Ground circuit. Is the resistance below 10K ohms? Yes Repair the (D701) Park Assist Sensor No. 8 Signal circuit for a short to the (Z914) Park Assist Module Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 6) .
  6. 6) CHECK THE (D701) PARK ASSIST SENSOR NO. 8 SIGNAL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (D701) Park Assist Sensor No. 8 Signal circuit. Is the resistance below 10K ohms? Yes Repair the (D701) Park Assist Sensor No. 8 Signal circuit for a short to ground. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Replace the Park Assist Module in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time exceeds limit (greater than 1450 [micro] secs).
Possible Causes
PARK ASSIST SENSOR NO. 8
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Data line stuck at 0.
Possible Causes
PARK ASSIST SENSOR NO. 8
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time is too short (700 [micro] secs).
Possible Causes
(D703) PARK ASSIST SENSOR NO. 9 SIGNAL CIRCUIT SHORTED TO (X750) PARK ASSIST SENSOR GROUND CIRCUIT
(D703) PARK ASSIST SENSOR NO. 9 SIGNAL CIRCUIT SHORTED TO (Z171) PARK ASSIST DISPLAY GROUND CIRCUIT
(D703) PARK ASSIST SENSOR NO. 9 SIGNAL CIRCUIT SHORTED TO (Z914) PARK ASSIST MODULE GROUND CIRCUIT
(D703) PARK ASSIST SENSOR NO. 9 SIGNAL CIRCUIT SHORTED TO GROUND
PARK ASSIST SENSOR NO. 9
PARK ASSIST MODULE

Scheme 23

Scheme 23: Diagnostic Test
Scheme 23: Diagnostic Test

Scheme 24

Scheme 24
Scheme 24

Scheme 25

Scheme 25
Scheme 25

Scheme 26

Scheme 26
Scheme 26

Scheme 27

Scheme 27
Scheme 27
  1. 1) CHECK FOR ACTIVE DTC: B1236-PTS SENSOR 9 CIRCUIT LOW 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. Is DTC: B1236-PTS SENSOR 9 CIRCUIT LOW 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»(ref-288232-S30638820392008062000000) .
  2. 2) CHECK PARK ASSIST SENSOR NO. 9 FOR A SHORT TO GROUND Shift the transmission into park. With the scan tool, erase DTCs. Turn the ignition off. Disconnect Park Assist Sensor No. 9. Turn the ignition on. Shift the transmission into reverse. With the scan tool, read Park Assist Module DTCs. Does the scan tool display: B1236-PTS SENSOR 9 CIRCUIT LOW? Yes Go to 3) . No Replace Park Assist Sensor No. 9 in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  3. 3) CHECK THE (D703) PARK ASSIST SENSOR NO. 9 SIGNAL CIRCUIT FOR A SHORT TO (X750) PARK ASSIST SENSOR GROUND CIRCUIT Turn the ignition off. Disconnect the Park Assist Module harness connector. Measure the resistance between the (D703) Park Assist Sensor No. 9 Signal circuit and the (X750) Park Assist Sensor Ground circuit. Is the resistance below 10K ohms? Yes Repair the (D703) Park Assist Sensor No. 9 Signal circuit for a short to the (X750) Park Assist Sensor Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 4) .
  4. 4) CHECK THE (D703) PARK ASSIST SENSOR NO. 9 SIGNAL CIRCUIT FOR A SHORT TO (Z171) PARK ASSIST DISPLAY GROUND CIRCUIT Measure the resistance between the (D703) Park Assist Sensor No. 9 Signal circuit and the (Z171) Park Assist Display Ground circuit. Is the resistance below 10K ohms? Yes Repair the (D703) Park Assist Sensor No. 9 Signal circuit for a short to the (Z171) Park Assist Display Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 5) .
  5. 5) CHECK THE (D703) PARK ASSIST SENSOR NO. 9 SIGNAL CIRCUIT FOR A SHORT TO (Z914) PARK ASSIST MODULE GROUND CIRCUIT Measure the resistance between the (D703) Park Assist Sensor No. 9 Signal circuit and the (Z914) Park Assist Module Ground circuit. Is the resistance below 10K ohms? Yes Repair the (D703) Park Assist Sensor No. 9 Signal circuit for a short to the (Z914) Park Assist Module Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 6) .
  6. 6) CHECK THE (D703) PARK ASSIST SENSOR NO. 9 SIGNAL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (D703) Park Assist Sensor No. 9 Signal circuit. Is the resistance below 10K ohms? Yes Repair the (D703) Park Assist Sensor No. 9 Signal circuit for a short to ground. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Replace the Park Assist Module in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time exceeds limit (greater than 1450 [micro] secs).
Possible Causes
PARK ASSIST SENSOR NO. 9
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Data line stuck at 0.
Possible Causes
PARK ASSIST SENSOR NO. 9
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time is too short (700 [micro] secs).
Possible Causes
(D704) PARK ASSIST SENSOR NO. 10 SIGNAL CIRCUIT SHORTED TO (X750) PARK ASSIST SENSOR GROUND CIRCUIT
(D704) PARK ASSIST SENSOR NO. 10 SIGNAL CIRCUIT SHORTED TO (Z171) PARK ASSIST DISPLAY GROUND CIRCUIT
(D704) PARK ASSIST SENSOR NO. 10 SIGNAL CIRCUIT SHORTED TO (Z913) PARK ASSIST MODULE GROUND CIRCUIT
(D704) PARK ASSIST SENSOR NO. 10 SIGNAL CIRCUIT SHORTED TO GROUND
PARK ASSIST SENSOR NO. 10
PARK ASSIST MODULE

Scheme 28

Scheme 28: Diagnostic Test
Scheme 28: Diagnostic Test

Scheme 29

Scheme 29
Scheme 29

Scheme 30

Scheme 30
Scheme 30

Scheme 31

Scheme 31
Scheme 31

Scheme 32

Scheme 32
Scheme 32
  1. 1) CHECK FOR ACTIVE DTC: B123B-PTS SENSOR 10 CIRCUIT LOW 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. Is DTC: B123B-PTS SENSOR 10 CIRCUIT LOW 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»(ref-288232-S30638820392008062000000) .
  2. 2) CHECK PARK ASSIST SENSOR NO. 10 FOR A SHORT TO GROUND Shift the transmission into park. With the scan tool, erase DTCs. Turn the ignition off. Disconnect Park Assist Sensor No. 10. Turn the ignition on. Shift the transmission into reverse. With the scan tool, read Park Assist Module DTCs. Does the scan tool display: B123B-PTS SENSOR 10 CIRCUIT LOW? Yes Go to 3) . No Replace Park Assist Sensor No. 10 in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  3. 3) CHECK THE (D704) PARK ASSIST SENSOR NO. 10 SIGNAL CIRCUIT FOR A SHORT TO (X750) PARK ASSIST SENSOR GROUND CIRCUIT Turn the ignition off. Disconnect the Park Assist Module harness connector. Measure the resistance between the (D704) Park Assist Sensor No. 10 Signal circuit and the (X750) Park Assist Sensor Ground circuit. Is the resistance below 10K ohms? Yes Repair the (D704) Park Assist Sensor No. 10 Signal circuit for a short to the (X750) Park Assist Sensor Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 4) .
  4. 4) CHECK THE (D704) PARK ASSIST SENSOR NO. 10 SIGNAL CIRCUIT FOR A SHORT TO (Z171) PARK ASSIST DISPLAY GROUND CIRCUIT Measure the resistance between the (D704) Park Assist Sensor No. 10 Signal circuit and the (Z171) Park Assist Display Ground circuit. Is the resistance below 10K ohms? Yes Repair the (D704) Park Assist Sensor No. 10 Signal circuit for a short to the (Z171) Park Assist Display Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 5) .
  5. 5) CHECK THE (D704) PARK ASSIST SENSOR NO. 10 SIGNAL CIRCUIT FOR A SHORT TO (Z913) PARK ASSIST MODULE GROUND CIRCUIT Measure the resistance between the (D704) Park Assist Sensor No. 10 Signal circuit and the (Z913) Park Assist Module Ground circuit. Is the resistance below 10K ohms? Yes Repair the (D704) Park Assist Sensor No. 10 Signal circuit for a short to the (Z913) Park Assist Module Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 6) .
  6. 6) CHECK THE (D704) PARK ASSIST SENSOR NO. 10 SIGNAL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (D704) Park Assist Sensor No. 10 Signal circuit and ground. Is the resistance below 10K ohms? Yes Repair the (D704) Park Assist Sensor No. 10 Signal circuit for a short to ground. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Replace the Park Assist Module in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time exceeds limit (greater than 1450 [micro] secs).
Possible Causes
PARK ASSIST SENSOR NO. 10
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Data line stuck at 0.
Possible Causes
PARK ASSIST SENSOR NO. 10
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time is too short (700 [micro] secs).
Possible Causes
(D702) PARK ASSIST SENSOR NO. 1 SIGNAL CIRCUIT SHORTED TO GROUND
PARK ASSIST SENSOR NO. 1
PARK ASSIST MODULE

Scheme 33

Scheme 33: Diagnostic Test
Scheme 33: Diagnostic Test

Scheme 34

Scheme 34
Scheme 34
  1. 1) CHECK FOR ACTIVE DTC: B1245-PTS SENSOR 1 CIRCUIT LOW 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. Is DTC: B1245-PTS SENSOR 1 CIRCUIT LOW 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»(ref-288232-S30638820392008062000000) .
  2. 2) CHECK PARK ASSIST SENSOR NO. 1 FOR A SHORT TO GROUND Shift the transmission into park. With the scan tool, erase DTCs. Turn the ignition off. Disconnect Park Assist Sensor No. 1. Turn the ignition on. Shift the transmission into reverse. With the scan tool, read Park Assist Module DTCs. Does the scan tool display: B1245-PTS SENSOR 1 CIRCUIT LOW? Yes Go to 3) . No Replace Park Assist Sensor No. 1 in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  3. 3) CHECK THE (D702) PARK ASSIST SENSOR NO. 1 SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the Ignition off. Disconnect the Park Assist Module C2 harness connector. Measure the resistance between ground and the (D702) Park Assist Sensor No. 1 Signal circuit. Is the resistance below 10K ohms? Yes Repair the (D702) Park Assist Sensor No. 1 Signal circuit for a short to ground. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Replace the Park Assist Module in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time exceeds limit (greater than 1450 [micro] secs).
Possible Causes
PARK ASSIST SENSOR NO. 1
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Data line stuck at 0.
Possible Causes
PARK ASSIST SENSOR NO. 1
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time is too short (700 [micro] secs).
Possible Causes
(D705) PARK ASSIST SENSOR NO. 2 SIGNAL CIRCUIT SHORTED TO GROUND
PARK ASSIST SENSOR NO. 2
PARK ASSIST MODULE

Scheme 35

Scheme 35: Diagnostic Test
Scheme 35: Diagnostic Test

Scheme 36

Scheme 36
Scheme 36
  1. 1) CHECK FOR ACTIVE DTC: B124A-PTS SENSOR 2 CIRCUIT LOW 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. Is DTC: B124A-PTS SENSOR 2 CIRCUIT LOW 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»(ref-288232-S30638820392008062000000) .
  2. 2) CHECK PARK ASSIST SENSOR NO. 2 FOR A SHORT TO GROUND Shift the transmission into park. With the scan tool, erase DTCs. Turn the ignition off. Disconnect Park Assist Sensor No. 2. Turn the ignition on. Shift the transmission into reverse. With the scan tool, read Park Assist Module DTCs. Does the scan tool display: B124A-PTS SENSOR 2 CIRCUIT LOW? Yes Go to 3) . No Replace Park Assist Sensor No. 2 in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  3. 3) CHECK THE (D705) PARK ASSIST SENSOR NO. 2 SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Park Assist Module Harness connector. Measure the resistance between ground and the (D705) Park Assist Sensor No. 2 Signal circuit. Is the resistance below 10K ohms? Yes Repair the (D705) Park Assist Sensor No. 2 Signal circuit for a short to ground. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Replace the Park Assist Module in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time exceeds limit (greater than 1450 [micro] secs).
Possible Causes
PARK ASSIST SENSOR NO. 2
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Data line stuck at 0.
Possible Causes
PARK ASSIST SENSOR NO. 2
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time is too short (700 [micro] secs).
Possible Causes
(D706) PARK ASSIST SENSOR NO. 3 SIGNAL CIRCUIT SHORTED TO GROUND
PARK ASSIST SENSOR NO. 3
PARK ASSIST MODULE

Scheme 37

Scheme 37: Diagnostic Test
Scheme 37: Diagnostic Test

Scheme 38

Scheme 38
Scheme 38
  1. 1) CHECK FOR ACTIVE DTC: B124F-PTS SENSOR 3 CIRCUIT LOW 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. Is DTC: B124F-PTS SENSOR 3 CIRCUIT LOW 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»(ref-288232-S30638820392008062000000) .
  2. 2) CHECK PARK ASSIST SENSOR NO. 3 FOR A SHORT TO GROUND Shift the transmission into park. With the scan tool, erase DTCs. Turn the ignition off. Disconnect Park Assist Sensor No. 3. Turn the ignition on. Shift the transmission into reverse. With the scan tool, read Park Assist Module DTCs. Does the scan tool display: B124F-PTS SENSOR 3 CIRCUIT LOW? Yes Go to 3) . No Replace Park Assist Sensor No. 3 in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  3. 3) CHECK THE (D706) PARK ASSIST SENSOR NO. 3 SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Park Assist Module harness connector. Measure the resistance between ground and the (D706) Park Assist Sensor No. 3 Signal circuit. Is the resistance below 10K ohms? Yes Repair the (D706) Park Assist Sensor No. 3 Signal circuit for a short to ground. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Replace the Park Assist Module in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time exceeds limit (greater than 1450 [micro] secs).
Possible Causes
PARK ASSIST SENSOR NO. 3
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Data line stuck at 0.
Possible Causes
PARK ASSIST SENSOR NO. 3
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time is too short (700 [micro] secs).
Possible Causes
(D707) PARK ASSIST SENSOR NO. 4 SIGNAL CIRCUIT SHORTED TO GROUND
PARK ASSIST SENSOR NO. 4
PARK ASSIST MODULE

Scheme 39

Scheme 39: Diagnostic Test
Scheme 39: Diagnostic Test

Scheme 40

Scheme 40
Scheme 40
  1. 1) CHECK FOR ACTIVE DTC: B1254-PTS SENSOR 4 CIRCUIT LOW 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. Is DTC: B1254-PTS SENSOR 4 CIRCUIT LOW 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»(ref-288232-S30638820392008062000000) .
  2. 2) CHECK PARK ASSIST SENSOR NO. 4 FOR A SHORT TO GROUND Shift the transmission into park. With the scan tool, erase DTCs. Turn the ignition off. Disconnect Park Assist Sensor No. 4. Turn the ignition on. Shift the transmission into reverse. With the scan tool, read Park Assist Module DTCs. Does the scan tool display: B1254-PTS SENSOR 4 CIRCUIT LOW? Yes Go to 3) . No Replace Park Assist Sensor No. 4 in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  3. 3) CHECK THE (D707) PARK ASSIST SENSOR NO. 4 SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Park Assist Sensor C2 harness connector. Measure the resistance between ground and the (D707) Park Assist Sensor No. 4 Signal circuit and ground. Is the resistance below 10K ohms? Yes Repair the (D707) Park Assist Sensor No. 4 Signal circuit for a short to ground. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Replace the Park Assist Module in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time exceeds limit (greater than 1450 [micro] secs).
Possible Causes
PARK ASSIST SENSOR NO. 4
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Data line stuck at 0.
Possible Causes
PARK ASSIST SENSOR NO. 4
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time is too short (700 [micro] secs).
Possible Causes
(D708) PARK ASSIST SENSOR NO. 5 SIGNAL CIRCUIT SHORTED TO GROUND
PARK ASSIST SENSOR NO. 5
PARK ASSIST MODULE

Scheme 41

Scheme 41: Diagnostic Test
Scheme 41: Diagnostic Test

Scheme 42

Scheme 42
Scheme 42
  1. 1) CHECK FOR ACTIVE DTC: B1259-PTS SENSOR 5 CIRCUIT LOW 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. Is DTC: B1259-PTS SENSOR 5 CIRCUIT LOW 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»(ref-288232-S30638820392008062000000) .
  2. 2) CHECK PARK ASSIST SENSOR NO. 5 FOR A SHORT TO GROUND Shift the transmission into park. With the scan tool, erase DTCs. Turn the ignition off. Disconnect Park Assist Sensor No. 5. Turn the ignition on. Shift the transmission into reverse. With the scan tool, read Park Assist Module DTCs. Does the scan tool display: B1259-PTS SENSOR 5 CIRCUIT LOW? Yes Go to 3) . No Replace Park Assist Sensor No. 5 in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  3. 3) CHECK THE (D708) PARK ASSIST SENSOR NO. 5 SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Park Assist Module harness connector. Measure the resistance between ground and the (D708) Park Assist Sensor No. 5 Signal circuit. Is the resistance below 10K ohms? Yes Repair the (D708) Park Assist Sensor No. 5 Signal circuit for a short to ground. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Replace the Park Assist Module in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time exceeds limit (greater than 1450 [micro] secs).
Possible Causes
PARK ASSIST SENSOR NO. 5
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Data line stuck at 0.
Possible Causes
PARK ASSIST SENSOR NO. 5
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time is too short (700 [micro] secs).
Possible Causes
(D709) PARK ASSIST SENSOR NO. 6 SIGNAL CIRCUIT SHORTED TO GROUND
PARK ASSIST SENSOR NO. 6
PARK ASSIST MODULE

Scheme 43

Scheme 43: Diagnostic Test
Scheme 43: Diagnostic Test

Scheme 44

Scheme 44
Scheme 44
  1. 1) CHECK FOR ACTIVE DTC: B125E-PTS SENSOR 6 CIRCUIT LOW 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. Is DTC: B125E-PTS SENSOR 6 CIRCUIT LOW 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»(ref-288232-S30638820392008062000000) .
  2. 2) CHECK PARK ASSIST SENSOR NO. 6 FOR A SHORT TO GROUND Shift the transmission into park. With the scan tool, erase DTCs. Turn the ignition off. Disconnect Park Assist Sensor No. 6. Turn the ignition on. Shift the transmission into reverse. With the scan tool, read Park Assist Module DTCs. Does the scan tool display: B125E-PTS SENSOR 6 CIRCUIT LOW? Yes Go to 3) . No Replace Park Assist Sensor No. 6 in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  3. 3) CHECK THE (D709) PARK ASSIST SENSOR NO. 6 SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. Disconnect the Park Assist Module harness connector. Measure the resistance between ground and the (D709) Park Assist Sensor No. 6 Signal circuit. Is the resistance below 10K ohms? Yes Repair the (D709) Park Assist Sensor No. 6 Signal circuit for a short to ground. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Replace the Park Assist Module in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Sensor ring down time exceeds limit (greater than 1450 [micro] secs).
Possible Causes
PARK ASSIST SENSOR NO. 6
  1. When Monitored: While the vehicle is in reverse or neutral for speeds less than 16 km/h.
  1. Set Condition: Data line stuck at 0.
Possible Causes
PARK ASSIST SENSOR NO. 6
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Park Assist Module supply voltage less than 9.0 volts.
Possible Causes
VEHICLE CHARGING SYSTEM
PARK ASSIST MODULE
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Park Assist Module supply voltage greater than 16.0 volts.
Possible Causes
VEHICLE CHARGING SYSTEM
PARK ASSIST MODULE
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Park Assist Sensor supply voltage less than 7.2 volts.
Possible Causes
(X700) PARK ASSIST SENSOR SUPPLY CIRCUIT SHORTED TO (X750) PARK ASSIST SENSOR GROUND CIRCUIT
(X700) PARK ASSIST SENSOR SUPPLY CIRCUIT SHORTED TO (Z171) PARK ASSIST DISPLAY GROUND CIRCUIT
(X700) PARK ASSIST SENSOR SUPPLY CIRCUIT SHORTED TO (Z913) PARK ASSIST MODULE GROUND CIRCUIT
(X700) PARK ASSIST SENSOR SUPPLY CIRCUIT SHORTED TO GROUND
PARK ASSIST SENSOR
PARK ASSIST MODULE

Scheme 45

Scheme 45: Diagnostic Test
Scheme 45: Diagnostic Test

Scheme 46

Scheme 46
Scheme 46

Scheme 47

Scheme 47
Scheme 47

Scheme 48

Scheme 48
Scheme 48
  1. 1) CHECK FOR AN ACTIVE DTC: B2126-SENSOR SUPPLY VOLTAGE LOW Turn the ignition on. Apply the park brake. Shift the transmission into Reverse. With the scan tool, record and erase DTCs. Wait 30 seconds. With the scan tool, read DTCs. Is the DTC B2126-SENSOR SUPPLY VOLTAGE LOW 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»(ref-288232-S30638820392008062000000) .
  2. 2) CHECK EACH PARK ASSIST SENSOR FOR A SHORT TO GROUND Turn the ignition off. Disconnect one Park Assist Sensor. Turn the ignition on. With the scan tool, read Park Assist Module DTCs. If DTC B2126 is still active, repeat this procedure by disconnecting another park assist sensor. However, if DTC B2126 changes from active to stored, or if all four sensors have been disconnected, proceed as follows: Is B2126-SENSOR SUPPLY VOLTAGE LOW still active? Yes Go to 3) . No Replace the Park Assist Sensor that caused DTC B2126 to change from active to stored after disconnecting it in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  3. 3) CHECK THE (X700) PARK ASSIST SENSOR SUPPLY CIRCUIT FOR A SHORT TO (X750) PARK ASSIST SENSOR GROUND CIRCUIT NOTE: Perform this test with all Park Assist Sensors disconnected. Turn the ignition off. Disconnect the Park Assist Module harness connector. Measure the resistance between the (X700) Park Assist Sensor Supply circuit and the (X750) Park Assist Sensor Ground circuit. Is the resistance below 10K ohms? Yes Repair the (X700) Park Assist Sensor Supply circuit for a short to the (X750) Park Assist Sensor Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 4) .
  4. 4) CHECK THE (X700) PARK ASSIST SENSOR SUPPLY CIRCUIT FOR A SHORT TO (Z171) PARK ASSIST DISPLAY GROUND CIRCUIT NOTE: Perform this test with all Park Assist Sensors disconnected. Measure the resistance between the (X700) Park Assist Sensor Supply circuit and the (Z171) Park Assist Display Ground circuit. Is the resistance below 10K ohms? Yes Repair the (X700) Park Assist Sensor Supply circuit for a short to the (Z171) Park Assist Display Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 5) .
  5. 5) CHECK THE (X700) PARK ASSIST SENSOR SUPPLY CIRCUIT FOR A SHORT TO (Z913) PARK ASSIST MODULE GROUND CIRCUIT NOTE: Perform this test with all Park Assist Sensors disconnected. Measure the resistance between the (X700) Park Assist Sensor Supply circuit and the (Z913) Park Assist Module Ground circuit. Is the resistance below 10K ohms? Yes Repair the (X700) Park Assist Sensor Supply circuit for a short to the (Z913) Park Assist Module Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 6) .
  6. 6) CHECK THE (X700) PARK ASSIST SENSOR SUPPLY CIRCUIT FOR A SHORT TO GROUND NOTE: Perform this test with all Park Assist Sensors disconnected. Measure the resistance between ground and the (X700) Park Assist Sensor Supply circuit. Is the resistance below 10K ohms? Yes Repair the (X700) Park Assist Sensor Supply circuit for a short to ground. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Replace the Park Assist Module in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .

Scheme 49

Scheme 49: Circuit Schematic
Scheme 49: Circuit Schematic
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Park Assist Sensor supply voltage greater than 9.2 volts.
Possible Causes
(X700) PARK ASSIST SENSOR SUPPLY CIRCUIT SHORT TO VOLTAGE
PARK ASSIST MODULE

Scheme 50

Scheme 50: Diagnostic Test
Scheme 50: Diagnostic Test
  1. 1) CHECK FOR ACTIVE DTC: B2127-SENSOR SUPPLY VOLTAGE HIGH 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. Is DTC: B2127-SENSOR SUPPLY VOLTAGE HIGH 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»(ref-288232-S30638820392008062000000) .
  2. 2) CHECK THE (X700) PARK ASSIST SENSOR SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the Park Assist Module harness connector. Turn the ignition on. Measure the voltage on the (X700) Park Assist Sensor Supply circuit. Is the voltage above 9.2 volts? Yes Repair the (X700) Park Assist Sensor Supply circuit for a short to voltage. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Replace the Park Assist Module in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .

Scheme 51

Scheme 51: Circuit Schematic
Scheme 51: Circuit Schematic
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Park Assist Sensor Display voltage less than 8.0 volts.
Possible Causes
(X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT SHORT TO GROUND
(X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT SHORT TO (Z171) PARK ASSIST DISPLAY GROUND CIRCUIT
(X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT SHORT TO (Z913) PARK ASSIST MODULE GROUND CIRCUIT
(X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT SHORT TO (X750) PARK ASSIST SENSOR GROUND CIRCUIT
PARK ASSIST DISPLAY
PARK ASSIST MODULE

Scheme 52

Scheme 52: Diagnostic Test
Scheme 52: Diagnostic Test

Scheme 53

Scheme 53
Scheme 53

Scheme 54

Scheme 54
Scheme 54

Scheme 55

Scheme 55
Scheme 55

Scheme 56

Scheme 56
Scheme 56
  1. 1) CHECK FOR ACTIVE DTC: B212A-PTS DISPLAY SUPPLY VOLTAGE LOW 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. Is DTC: B212A-PTS DISPLAY SUPPLY VOLTAGE LOW 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»(ref-288232-S30638820392008062000000) .
  2. 2) CHECK PARK ASSIST MODULE FOR AN INTERNAL SHORT TO GROUND Turn the ignition off. Disconnect the Park Assist Module harness connector. Measure the resistance between ground and the (X777) Park Assist Display Supply circuit. Is the resistance below 10K ohms? Yes Go to 3) . No Replace the Park Assist Module in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  3. 3) CHECK THE (X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT FOR A SHORT TO THE (Z171) PARK ASSIST DISPLAY GROUND CIRCUIT Disconnect the Park Assist Display harness connector. Measure the resistance between the (X777) Park Assist Display Supply circuit and the (Z171) Park Assist Display Ground circuit. Is the resistance below 10K ohms? Yes Repair the (X777) Park Assist Display Supply circuit for a short to the (Z171) Park Assist Display Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 4) .
  4. 4) CHECK THE (X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT FOR A SHORT TO THE (Z913) PARK ASSIST MODULE GROUND CIRCUIT Measure the resistance between the (X777) Park Assist Display Supply circuit and the (Z913) Park Assist Module Ground circuit. Is the resistance below 10K ohms? Yes Repair the (X777) Park Assist Display Supply circuit for a short to the (Z913) Park Assist Module Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 5) .
  5. 5) CHECK THE (X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT FOR A SHORT TO THE (X750) PARK ASSIST SENSOR GROUND CIRCUIT Measure the resistance between the (X777) Park Assist Display Supply circuit and the (X750) Park Assist Sensor Ground circuit. Is the resistance below 10K ohms? Yes Repair the (X777) Park Assist Display Supply circuit for a short to the (X750) Park Assist Sensor Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 6) .
  6. 6) CHECK THE (X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (X777) Park Assist Display Supply circuit. Is the resistance below 10K ohms? Yes Repair the (X777) Park Assist Display Supply circuit for a short to ground. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Replace the Park Assist Display in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  1. When Monitored: With the ignition on.
  1. Set Condition: If the Vehicle Line data transmitted on the CAN B bus doesn't correspond with the data stored in the Park Assist Module.
Possible Causes
PARK ASSIST MODULE
  1. When Monitored: With the ignition on.
  1. Set Condition: The Park Assist Module detects an internal failure.
Possible Causes
PARK ASSIST MODULE
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: The Park Assist Module detects an internal Park Assist Display failure.
Possible Causes
PARK ASSIST DISPLAY
  1. When Monitored: Park Assist Module supply voltage between 9-16 volts. Ignition in Run/Start.
  1. Set Condition: Ignition status = 7h
Possible Causes
NO COMMUNICATION WITH INSTRUMENT CLUSTER
DTCS STORED OR ACTIVE IN THE INSTRUMENT CLUSTER
ACTIVE DTCS IN THE FCM
PARK ASSIST MODULE
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Display data line low.
Possible Causes
(D777) PARK ASSIST DISPLAY SIGNAL CIRCUIT SHORT TO THE (Z171) PARK ASSIST DISPLAY GROUND CIRCUIT
(D777) PARK ASSIST DISPLAY SIGNAL CIRCUIT SHORT TO THE (X750) PARK ASSIST SENSOR GROUND CIRCUIT
(D777) PARK ASSIST DISPLAY SIGNAL CIRCUIT SHORT TO THE (Z913) PARK ASSIST MODULE GROUND CIRCUIT
(D777) PARK ASSIST DISPLAY SIGNAL CIRCUIT SHORT TO GROUND
PARK ASSIST DISPLAY
PARK ASSIST MODULE

Scheme 57

Scheme 57: Diagnostic Test
Scheme 57: Diagnostic Test

Scheme 58

Scheme 58
Scheme 58

Scheme 59

Scheme 59
Scheme 59

Scheme 60

Scheme 60
Scheme 60

Scheme 61

Scheme 61
Scheme 61
  1. 1) CHECK FOR ACTIVE DTC: U1002-PTS DISPLAY COMMUNICATION CIRCUIT LOW 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. Is DTC: U1002-PTS DISPLAY COMMUNICATION CIRCUIT LOW 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»(ref-288232-S30638820392008062000000) .
  2. 2) CHECK PARK ASSIST MODULE FOR AN INTERNAL SHORT TO GROUND Turn the ignition off. Disconnect the Park Assist Module harness connector. Measure the resistance between ground and the (D777) Park Assist Display Signal circuit. Is the resistance below 10K ohms? Yes Go to 3) . No Replace the Park Assist Module in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  3. 3) CHECK THE (D777) PARK ASSIST DISPLAY SIGNAL CIRCUIT FOR A SHORT TO THE (Z171) PARK ASSIST DISPLAY GROUND CIRCUIT Disconnect the Park Assist Display harness connector. Measure the resistance between the (D777) Park Assist Display Signal circuit and the (Z171) Park Assist Display Ground circuit. Is the resistance below 10K ohms? Yes Repair the (D777) Park Assist Display Signal circuit for a short to the (Z171) Park Assist Display Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 4) .
  4. 4) CHECK THE (D777) PARK ASSIST DISPLAY SIGNAL CIRCUIT FOR A SHORT TO THE (X750) PARK ASSIST SENSOR GROUND CIRCUIT Measure the resistance between the (D777) Park Assist Display Signal circuit and the (X750) Park Assist Sensor Ground circuit. Is the resistance below 10K ohms? Yes Repair the (D777) Park Assist Display Signal circuit for a short to the (X750) Park Assist Sensor Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 5) .
  5. 5) CHECK THE (D777) PARK ASSIST DISPLAY SIGNAL CIRCUIT FOR A SHORT TO THE (Z913) PARK ASSIST MODULE GROUND CIRCUIT Measure the resistance between the (D777) Park Assist Display Signal circuit and the (Z913) Park Assist Module Ground circuit. Is the resistance below 10K ohms? Yes Repair the (D777) Park Assist Display Signal circuit for a short to the (Z913) Park Assist Module Ground circuit. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Go to 6) .
  6. 6) CHECK THE (D777) PARK ASSIST DISPLAY SIGNAL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (D777) Park Assist Display Signal circuit. Is the resistance below 10K ohms? Yes Repair the (D777) Park Assist Display Signal circuit for a short to ground. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Replace the Park Assist Display in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .

Scheme 62

Scheme 62: Circuit Schematic
Scheme 62: Circuit Schematic
  1. When Monitored: While the vehicle is in reverse for speeds less than 16 km/h.
  1. Set Condition: Data display line open.
Possible Causes
(D777) PARK ASSIST DISPLAY SIGNAL CIRCUIT OPEN
(X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT OPEN
(Z171) PARK ASSIST DISPLAY GROUND CIRCUIT OPEN
PARK ASSIST DISPLAY
PARK ASSIST MODULE

Scheme 63

Scheme 63: Diagnostic Test
Scheme 63: Diagnostic Test

Scheme 64

Scheme 64
Scheme 64

Scheme 65

Scheme 65
Scheme 65
  1. 1) CHECK FOR ACTIVE DTC: U1101-LOST COMMUNICATION WITH PTS DISPLAY 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. Is DTC: U1101-LOST COMMUNICATION WITH PTS DISPLAY 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»(ref-288232-S30638820392008062000000) .
  2. 2) CHECK THE (D777) PARK ASSIST DISPLAY SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off. Disconnect the Park Assist Module harness connector. Disconnect the Park Assist Display Module harness connector. Measure the resistance of the (D777) Park Assist Display Signal circuit between the Park Assist Module harness connector and the Park Assist Display harness connector. Is the resistance below 5.0 ohms? Yes Go to 3) . No Repair the (D777) Park Assist Display Signal circuit for an open. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  3. 3) CHECK THE (X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT FOR AN OPEN Measure the resistance of the (X777) Park Assist Display Supply circuit between the Park Assist Module harness connector and the Park Assist Display harness connector. Is the resistance below 5.0 ohms? Yes Go to 4) . No Repair the (X777) Park Assist Display Supply circuit for an open. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  4. 4) CHECK THE (Z171) PARK ASSIST DISPLAY GROUND CIRCUIT FOR AN OPEN Measure the resistance of the (Z171) Park Assist Display Ground circuit between the Park Assist Module harness connector and the Park Assist Display harness connector. Is the resistance below 5.0 ohms? Yes Go to 5) . No Repair the (Z171) Park Assist Display Ground circuit for an open. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .
  5. 5) CHECK THE OPERATION OF THE PARK ASSIST DISPLAY Replace the Park Assist Display in accordance with the service information. Reconnect the Park Assist Module harness connector. Turn the ignition on. With the scan tool, read DTCs. Does the scan tool display U1101-LOST COMMUNICATION WITH PTS DISPLAY? Yes Replace the Park Assist Module in accordance with the service information. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) . No Test Complete. Perform «BODY VERIFICATION TEST»(ref-288232-S30638820392008062000000) .

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