P1906
WarningTSS Circuit Intermittent Malfunction
Is it safe to drive?
🟡 Check the vehicle display for drive or charge restrictions and schedule service promptly.
What does P1906 mean?
P-code P1906 means "TSS Circuit Intermittent Malfunction". It is a manufacturer-specific diagnostic trouble code (DTC) in the powertrain. The tss circuit intermittent malfunction signal is absent or intermittent, preventing the control module from monitoring this parameter. This warning should be addressed within the next few days to avoid further damage. This code applies to OBD-II compliant electric and hybrid vehicles.
Possible Causes
- Sensor has completely failed and produces no output signal
- Disconnected or severely corroded electrical connector
- Broken wire in the signal path between sensor and module
- Control module failure unable to process the incoming signal
Recommended Actions
- 1 Avoid aggressive driving and schedule a diagnostic appointment within the next 1–3 days
- 2 Scan for all DTCs with an OBD-II scanner — note any related codes stored alongside P1906
- 3 Inspect the powertrain component and its wiring for visible damage
- 4 Check for water intrusion in connector areas and clean contacts if corroded
- 5 Clear the DTC, road-test the vehicle, and re-scan to confirm whether the fault returns
- 6 If the fault persists after inspection and clearing, consult an EV-certified technician for component replacement
Related Powertrain fault codes
P0100 Mass or Volume Air Flow Circuit Malfunction P0102 Mass or Volume Air Flow Circuit Low Input P0103 Mass or Volume Air Flow Circuit High Input P0105 Manifold Absolute Pressure/Barometric Pressure Circuit P0107 Manifold Absolute Pressure/Barometric Pressure Circuit P0108 Manifold Absolute Pressure/Barometric Pressure Circuit P0110 IAT Circuit Malfunction P0117 Engine Coolant Temperature Circuit Low Input