Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2000 Volvo S80 BaseFACTORY OEM SERVICE PROCEDURE
Transmission Control Module (TCM) Diagnostic Trouble Codes - 1 Of 5
- TCM-0001: Shift Solenoid S1. Signal Too High (4T65EV; 1999-2005)
- TCM-0001: Shift Solenoid S1. Signal Too High (4T65EV-Gt; 1999-2006)
- TCM-0001: Shift Solenoid S1. Signal Too High (Aw50/51 AWD; Aw55-50/51SN; 2004-2006)
- TCM-0002: Shift Solenoid S1. Signal Missing (4T65EV; 1999-2005)
- TCM-0002: Shift Solenoid S1. Signal Missing (4T65EV-Gt; 1999-2006)
- TCM-0002: Shift Solenoid S1. Signal Missing (Aw50/51 AWD; Aw55-50/51SN; 2004-2006)
- TCM-0003: Shift Solenoid S1. Signal Too Low (4T65EV; 1999-2005)
- TCM-0003: Shift Solenoid S1. Signal Too Low (4T65EV-Gt; 1999-2006)
- TCM-0003: Shift Solenoid S1. Signal Too Low (Aw50/51 AWD; Aw55-50/51SN; 2004-2006)
- TCM-0007: Shift Solenoid S2. Signal Too High (4T65EV; 1999-2005)
- TCM-0007: Shift Solenoid S2. Signal Too High (4T65EV-Gt; 1999-2006)
- TCM-0007: Shift Solenoid S2. Signal Too High (Aw50/51 AWD; Aw55-50/51SN; 2004-2006)
- TCM-0008: Shift Solenoid S2. Signal Missing (4T65EV; 1999-2005)
- TCM-0008: Shift Solenoid S2. Signal Missing (4T65EV-Gt; 1999-2006)
- TCM-0008: Shift Solenoid S2. Signal Missing (Aw50/51 AWD; Aw55-50/51SN; 2004-2006)
- TCM-0009: Shift Solenoid S2. Signal Too Low (4T65EV; 1999-2005)
- TCM-0009: Shift Solenoid S2. Signal Too Low (4T65EV-Gt; 1999-2006)
- TCM-0009: Shift Solenoid S2. Signal Too Low (Aw50/51 AWD; Aw55-50/51SN; 2004-2006)
- TCM-000B: Shift Solenoid S1. Hydraulic Fault (4T65EV; 1999-2005)
- TCM-000B: Shift Solenoid S1. Hydraulic Fault (4T65EV-Gt; 1999-2006)
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.