Pinpoint Test Aa : The Safety Belt Warning Indicator Is Never Or Always On
- Normal Operation and Fault Conditions
If the safety belt status message is missing or is deemed invalid, the BCM and the IPC set DTC U0151:00. If the safety belt status message is missing, the IPC defaults the safety belt warning indicator off.
See Safety Belt Warning Indicator. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .
Possible Sources
- Safety belt buckle concern
- RCM concern
- IPC
- AA1 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Ignition ON.
- Using a diagnostic scan tool, perform the IPC self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to DTC Chart: IPC . No GO to AA2 - AA2 CARRY OUT THE DEALER TEST MODE
- Enter the dealer test mode. See Dealer Test Mode. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .
- Scroll down to Telltale and Color Test.
- Observe the safety belt warning indicator.
Does the safety belt warning indicator illuminate when viewing the Telltales in the dealer test mode?
Yes GO to AA3 No Refer to IPC Guided Routine Testing . - AA3 CHECK THE DRIVER SAFETY BELT BUCKLE SWITCH
- Using a diagnostic scan tool, view the RCM Parameter Identifications (PIDs).
- Select and monitor the RCM driver safety belt buckle (DRBELTST) PID while buckling and unbuckling the driver safety belt.
Does the PID display BUCKLED with the safety belt buckled and UNBUCKLED with the safety belt unbuckled?
Yes If the safety belt warning indicator is never on, the system is operating correctly at this time. If the safety belt warning indicator is always on, DIAGNOSE any RCM Diagnostic Trouble Codes (DTCs). REFER to: Airbag Supplemental Restraint System (SRS) . No INSTALL a new safety belt buckle. REFER to: Front Seatbelt Buckle . If the safety belt warning indicator is still inoperative or always on, INSTALL a new RCM. REFER to: Restraints Control Module (RCM) .