| Diagnosis and Testing Refer to Wiring Diagrams Section 501-20A, for schematic and connector information. Principles of Operation Belt Minder The belt minder feature is a supplemental warning that augments the current safety belt warning function. This feature continually reminds the driver that their safety belt is unbuckled by intermittently sounding a chime and illuminating the safety belt warning indicator in the instrument cluster once the vehicle speed has exceeded 5 mph (7 km/h). Immediately after the ignition is turned to position II the belt minder is activated. The belt minder alternates from ON for six seconds and OFF for 30 seconds until deactivated. The belt minder will be deactivated under the following conditions: - ignition switch is turned to position 0
- ignition switch is turned to position I
- five minutes has elapsed with the belt minder activated
If the customer buckles their safety belt prior to the belt minder becoming active, the belt minder will remain inactive, therefore will not provide a reminder, until the correct conditions are met as described above on the NEXT ignition cycle from OFF or position I to position II. Inspection and Verification - Verify the customer concern.
- Visually inspect for obvious signs of mechanical or electrical damage.
Visual Inspection Chart | Mechanical | Electrical | - Door ajar switch(es)
- Safety belt buckle and pretensioner
| - Fuse(s)
- Wiring harness(es)
- Electrical connector(s)
- Switch(es)
- Sensor(s)
- Generic electronic module (GEM)
- Instrument Cluster.
| - 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 vehicle is fitted with a belt minder, verify the symptom and refer to the Symptom Chart.
- If the cause is not visually evident, verify the symptom and refer to WDS to diagnose the system.
Symptom Chart | Symptom | Possible Sources | Action | | The belt minder feature does not operate correctly | * Circuit(s). * Safety belt buckle switch. * GEM. * Instrument Cluster. | * | Pinpoint Tests NOTE:Use a digital multimeter for all electrical measurements. | PINPOINT TEST A : THE BELT MINDER FEATURE DOES NOT OPERATE CORRECTLY | | TEST CONDITIONS | DETAILS/RESULTS/ACTIONS | | A1: CHECK SAFETY BELT BUCKLE SWITCH FOR CORRECT OPERATION | | | 1 Disconnect the battery ground cable.
REFER to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).
| | | WARNING:Wait at least one minute after disconnecting the battery ground cable before disconnecting any supplemental restraint system electrical connector. Failure to follow this instruction may result in personal injury. 2 Connect the battery ground cable.
REFER to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).
| | | 3 Ignition switch in position 0. | | | 4 Disconnect Safety Belt Buckle Switch C663. | | | 5 Measure the resistance between the safety belt buckle switch C663 pin 5, and pin 6, component side. | | | 6 Connect the safety belt tongue into the safety belt buckle and pretensioner. | | | 7 Measure the resistance between the safety belt buckle switch C663 pin 5, and pin 6, component side. | | | Does the resistance change from less than 1 ohm to greater than 10,000 ohms (open circuit) when the safety belt is connected? Yes No INSTALL a new safety belt buckle and pretensioner.
REFER to: Safety Belt Buckle and Pretensioner (501-20A Safety Belt System, Removal and Installation).
TEST the system for normal operation. | | A2: CHECK CIRCUIT 31S-GE46 (BK/WH) FOR OPEN CIRCUIT | | | 1 Disconnect GEM C316. | | | 2 Measure the resistance between the GEM C316 pin 9, circuit 31S-GE46 (BK/WH), harness side and the safety belt buckle switch C663 pin 5, circuit 31S-GE46 (BK/WH), harness side. | | | Is the resistance less than 1 ohm? Yes No REPAIR the circuit. TEST the system for normal operation. | | A3: CHECK CIRCUIT 31-GE46 (BK) FOR GROUND | | | 1 Measure the resistance between the safety belt buckle switch C663 pin 6, circuit 31-GE46 (BK), harness side and ground. | | | Is the resistance less than 1 ohm? Yes REFER to: Instrument Cluster - Vehicles Built From: 10/2005 (413-01 Instrument Cluster, Diagnosis and Testing). No REPAIR the circuit. TEST the system for normal operation. | |
