No. 2116.1
Service Bulletin Details
Public Details for: No. 2116.1
Instructions on advanced technical information for red warning in the instrument cluster - occupant seat belt not fastened.
- 2022 - 2021 - 2020 - 2019 - 2018 - 2017 -
Models from 2019
2019 PORSCHE CAYENNE |
2019 PORSCHE PANAMERA |
Models from 2018
2018 PORSCHE PANAMERA |
Models from 2017
2017 PORSCHE PANAMERA |
Bulletin #: 2116.1 Advanced Technical Information Part ID: 6924 6 Red Warning in the Instrument Cluster: Occupant Seat Belt not Fastened Vehicles Affected Models Model Year Model Type VIN Range Vehicle-Specific Equipment Panamera Cayenne 911 Taycan As of 2017 As of 2019 As of 2020 As of 2020 971 9YA, 9YB 992 Y1A, Y1B N/A N/A Revision History Revision Release Date Changes 0 July15, 2021 Original document 1 April 8, 2022 Update of resistance Condition The customer complains of a red warning message in the instrument cluster that reads, “Occupant seat belt not fastened. Fasten seat belt.” This message appears despite all seat belts being fastened. Figure 1: Red warning in the instrument cluster AfterSales April 8, 2022 Page 1 of 5 Bulletin #: 2116.1 Advanced Technical Information Part ID: 6924 6 Technical Background The red warning message may appear for one of three reasons: 1. 2. 3. The belt buckle is faulty, The vehicle is moving at a speed greater than 18 mph (30 km/h) and an occupant does not have their seat belt fastened, or The vehicle detects improper use of the seat belt by the driver (e.g., use of a dummy belt buckle). The airbag control unit (CU) counts the number of drive cycles where the seat belt is not disconnected after the cycle is complete (i.e., the vehicle is shut off). Once the threshold of 5 cycles is reached, the warning light shown in Figure 1 appears in the instrument cluster. Note: The count is decreased by 1 each time that the seat belt is disconnected after a drive cycle. Therefore, more than 5 drive cycles may be required to set the red warning in the instrument cluster. Service Information 1. Document the presence of any “dummy” seat belt buckles in the vehicle with pictures. Please present the following questions to the customer and document their answers: a) Is a “dummy” (fake) seat belt buckle ever used in the vehicle? b) i. Is the seat belt ever handled in a unique way? (e.g., sitting on top of buckled seat belt, placing seat belt behind seat, inserting passenger seat belt into driver belt buckle) ii. Does the seat belt remain permanently fastened while the vehicle is driven? c) Is the vehicle ever parked for a longer period (more than a couple minutes) with the door open? d) Do you ever remain in the vehicle with the belt buckled and engine off (e.g., during a phone call)? e) What is the typical seat belt buckle fastening procedure when the operator enters the vehicle? f) What is the typical seat belt buckle unfastening procedure when the operator exits the vehicle? AfterSales April 8, 2022 Page 2 of 5 Bulletin #: 2116.1 Advanced Technical Information Part ID: 6924 6 2. Before attempting any repairs to the vehicle, take a service VAL (Pre-VAL) to document any fault codes present in the vehicle. a. Note: If the red warning (Figure 1) is present in the instrument cluster upon the vehicle’s arrival for service, continue to Step 3. If no warnings are present at the time of arrival, begin with Step 4. 3. Clear all relevant fault codes from the fault memory. If the relevant fault codes will not clear via the PIWIS tester and the red warning message from Figure 1 is still present in the instrument cluster, follow the procedure outlined in steps (a) through (g) below. a. Unlock and enter the vehicle with the seat belt buckled. b. With the seat belt unbuckled, start the vehicle. c. Buckle the seat belt. d. Safely accelerate to a speed of 18 mph/30 kmh, then find a safe location and park the vehicle. e. Unbuckle the seat belt, exit the vehicle, and lock all doors. Wait 30 seconds. Figure 2: Example of dummy seat belt buckles AfterSales April 8, 2022 Page 3 of 5 Bulletin #: 2116.1 Advanced Technical Information Part ID: 6924 6 f. Repeat steps (a) through (c). i. If the warning message is no longer in the instrument cluster, the fault codes are passive and can now be cleared. ii. If the warning message is still present in the instrument cluster, please repeat steps (a) through (e) until the warning message is cleared from the instrument cluster. g. After the warning message is cleared from the instrument cluster, clear all relevant fault codes from the fault memory. Take a service VAL (During-VAL) to document the absence of any fault codes. 4. Check the resistance of the wires at both sides of the belt lock electrical connector. Please refer to WM 692419 – Removing and installing front belt lock, to determine the location of the driver’s belt lock connector. a. The resistance from the connector to the belt lock should be between 320-480 Ohms (0.320- 0.480 kΩ). Take a photo of the resistance measurement and attach it to the PCSS job. i. The belt lock should be replaced if the resistance is outside of the specified range. b. The resistance from the connector to the airbag CU (female side) should be 185-200 kΩ. Take a photo of the resistance measurement and attach it to the PCSS job. i. If the resistance is outside of the specified range, check for continuity in the wires from the electrical connector to the airbag CU. If continuity is verified, replace the airbag CU. If no continuity is verified, inspect the wires in the wire harness from the electrical connector to the airbag CU. c. If all measurements are within specification, continue to Step 5. If any repairs were made during Step 4, verify that all components are functioning as designed. Figure 3: Resistance check for (4a) AfterSales April 8, 2022 Page 4 of 5 Bulletin #: 2116.1 Advanced Technical Information Part ID: 6924 6 5. Perform the drive cycle outlined below to set the red warning in Figure 1. a. Unlock and enter the vehicle with the seat belt unbuckled. b. Buckle the seat belt and start the vehicle. Let the engine run for 1 minute. c. Turn the vehicle off. Leaving the seat belt buckled, exit and lock the vehicle. Wait 30 seconds. d. Unlock and enter the vehicle. Start the engine and let it run for 1 minute. Ensure that the seat belt remains buckled. e. Repeat steps (c) and (d) until the red warning in Figure 1 appears in the instrument cluster. The warning typically appears within 5-8 cycles. f. Take a service VAL (During-VAL) to document the presence of the warning in the instrument cluster. 6. Perform the instruction in Steps (3a) through (3g) to clear the warning (Figure 1) from the instrument cluster. Take a service VAL (Post-VAL). 7. If the red warning (Figure 1) is manually set and subsequently cleared by performing the instructions in Steps (5a) through (5f), the system operates as designed. Warranty As always, be sure to document the repair completely in PCSS. For this repair, please code the “cause” as follows: Cause location: 69240 Front belt lock Cause symptom: 4045 Warning activated Use the following troubleshooting labor operation: 03350000 On board diagnostic (Main work) Fault memory read out and battery charger connect 69241901 Front belt lock remove and reinstall (Main work) 03350053 On board diagnostic (Composite work) Create VAL Search Items Seat belt, belt lock, 911, Taycan, Panamera, Cayenne Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training courses. They are written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special tools may be necessary in order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the safe operation of your vehicle, and may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and safely. Part numbers listed in these bulletins are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a discrepancy, the work procedures in the PIWIS Tester are the ones that must be followed. ©2022 Porsche Cars North America, Inc. AfterSales April 8, 2022 Page 5 of 5