Inspection and Verification
Verify the customer concern by operating the system.
Visually inspect the following for obvious signs of electrical damage.
Visual Inspection Chart Electrical
Fuse junction panel Fuse 6 (5A)
Circuitry
Parking aid module (PAM)
Relays
Parking aid sensors
Parking aid switch
Parking aid disabled LED
Parking aid speaker
If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
If the scan tool does not power up, refer to the scan tool manual.
Carry out the DATA LINK DIAGNOSTICS test. If the scan tool responds with:
CKT 914, CKT 915 or CKT 70 — ALL ECUS NO RESP/NOT EQUIP, refer to Section 418-00 .
NO RESP/NOT EQUIP for PAM, go to Pinpoint Test A.
SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the parking aid (PAM) module.
If the DTCs retrieved are related to the concern, go to the PAM Diagnostic Trouble Code (DTC) Index.
If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics.
PAM Diagnostic Trouble Code (DTC) Index
PAM Diagnostic Trouble Code (DTC) Index DTC Description Source Action
B1299 Power supply sensor circuit short to ground PAM GO to Pinpoint Test A .
B1342 ECU is defective PAM CLEAR the DTCs. REPEAT the PAM self-test. If DTC B1342 is retrieved again, INSTALL a new PAM; REFER to Parking Aid Module . CLEAR all DTCs. REPEAT the self-test.
B2373 LED #1 circuit short to battery PAM GO to Pinpoint Test B .
B2477 Module configuration failure PAM REFER to Section 418-01 .
C1699 Left rear sensor circuit short to battery PAM GO to Pinpoint Test B .
C1700 Left rear sensor circuit failure PAM GO to Pinpoint Test B .
C1701 Left rear sensor circuit fault PAM GO to Pinpoint Test B .
C1702 Right rear sensor circuit short to battery PAM GO to Pinpoint Test B .
C1703 Right rear sensor circuit failure PAM GO to Pinpoint Test B .
C1704 Right rear sensor circuit fault PAM GO to Pinpoint Test B .
C1705 Left rear center sensor circuit short to battery PAM GO to Pinpoint Test B .
C1706 Left rear center sensor circuit failure PAM GO to Pinpoint Test B .
C1707 Left rear center sensor fault PAM GO to Pinpoint Test B .
C1708 Right rear center sensor circuit short to battery PAM GO to Pinpoint Test B .
C1709 Right rear center sensor circuit failure PAM GO to Pinpoint Test B .
C1710 Right rear center sensor fault PAM GO to Pinpoint Test B .
C1742 Rear sounder circuit failure PAM GO to Pinpoint Test B .
C1743 Rear sounder circuit short to battery PAM GO to Pinpoint Test B .
C1748 Switch input circuit short to ground PAM GO to Pinpoint Test B .
C1920 LED #1 circuit failure PAM GO to Pinpoint Test B .
Suggest that you check all sensors and check the wiring to each sensor and clean the contact surface on the connectors and use some dialect grease on the pins. Check each sensor for any signs of dirt or cracks.
