Diagnostic Routine S

Diagnostic Routine S

Diagnostic Overview

The Safety Belt Warning Indicator Is Never or Always On

Normal Operation and Fault Conditions

REFER to Safety Belt Warning Indicator .

If the safety belt indicator request message is missing or invalid for less than 5 seconds, the IPC (Instrument Panel Cluster) defaults the safety belt warning indicator to its last state (on or off) based upon the last known good message received.

If the IPC (Instrument Panel Cluster) does not receive the safety belt indicator request message from the RCM (Restraints Control Module) or the message is deemed invalid by the IPC (Instrument Panel Cluster) for 5 seconds or longer, the IPC (Instrument Panel Cluster) sets DTC (Diagnostic Trouble Code) U0151:00 and defaults the safety belt warning indicator off.

Pinpoint Test

1. RETRIEVE THE RECORDED RCM (Restraints Control Module) DTCs (Diagnostic Trouble Codes) FROM THE SELF-TEST

1. Using a scan tool, perform the RCM (Restraints Control Module) self-test.

Are any DTCs (Diagnostic Trouble Codes) recorded?








2. RETRIEVE THE RECORDED DTCs (Diagnostic Trouble Codes) FROM THE IPC (Instrument Panel Cluster) SELF-TEST

1. Using a scan tool, perform the IPC (Instrument Panel Cluster) self-test.

Are any DTCs (Diagnostic Trouble Codes) recorded?








3. CHECK THE DRIVER SAFETY BELT BUCKLE SWITCH

1. Ignition ON.

2. Using a scan tool, view the RCM (Restraints Control Module) PIDs (Parameter Identifications).

3. Select and monitor the RCM (Restraints Control Module) driver safety belt buckle PID (Parameter Identification) (SBELT_D_ST) while buckling and unbuckling the driver safety belt.

Does the PID (Parameter Identification) display BUCKLED with the safety belt buckled and UNBUCKLED with the safety belt unbuckled?








4. CARRY OUT THE IPC (Instrument Panel Cluster) INDICATOR LAMP CONTROL ACTIVE COMMAND USING THE SCAN TOOL

1. Ignition ON.

2. Using a scan tool, view the IPC (Instrument Panel Cluster) PIDs (Parameter Identifications).

3. Select the IPC (Instrument Panel Cluster) safety belt warning indicator (SBLT_LAMP) active command. Command the safety belt warning indicator on and off. Observe the safety belt warning indicator.

Does the safety belt warning indicator illuminate when commanded on and turn off when commanded off?