Fault Code 164: Service Brake Switch 2
J1939: SA 3 SPN 603 FMI 9, 13, 19
Overview
The Transmission Control Module (TCM) receives the vehicle’s Service Brake Switch 2 message over the Primary Data Link. This information is used to determine transmission operation.
Detection
The TCM monitors the Service Brake Switch 2 message. If a failure is detected the fault is set Active.
Conditions to Set Fault Code Active
FMI 9 - Abnormal Update Rate: Service Brake Switch 2 message not received for 5 seconds.
FMI 13 - Out of Calibration: Service Brake Switch 2 message not available for 5 seconds.
FMI 19: Service Brake Switch 2 message invalid for 5 seconds.
Fallback
FMI 9, 13, 19:
- Urge to Move and Creep Mode prohibited
- Hill Start Aid prohibited
Conditions to Set Fault Code Inactive
FMI 9, 13, 19: Service Brake Switch 2 message.
Possible Causes
FMI 9, 13, 19:
- Vehicle Components
- Module(s)
- Service Brake Switch 2
- Primary Data Link
Additional Tools
- None
Fault Code 164 Troubleshooting
Record the transmission fault codes, FMIs, occurrences, and timestamps from the Service Activity Report created during the Diagnostic Procedure.
If Fault Code 164 is Inactive and there are other Active vehicle or transmission fault codes, troubleshoot all Active fault codes. Go to Step V
If Fault Code 164 FMI 13 is Active, refer to OEM and enable vehicle Service Brake Switch 2 SPN 603. Go to Step V
If Fault Code 164 FMI 13 is Inactive, Go to Step V
If Fault Code 164 FMI 9 or 19 is Active or Inactive, refer to OEM guidelines regarding Service Brake Switch 2 repair or replacement. Go to Step V
Key off.
Reconnect all connectors and verify that all components are properly installed.
Key on with engine off.
Connect ServiceRanger.
Go to “Fault Codes”.
Select “Clear All Faults”.
Operate vehicle and attempt to reset the fault code or duplicate the previous complaint.
Check for fault codes using ServiceRanger.
If no fault codes set and the vehicle operates properly, test complete.
If Fault Code 164 sets Active during operation, Go to Step A
If a fault code other than 164 sets Active, troubleshoot per Fault Code Isolation Procedure Index.