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.
2003 Volvo XC70FACTORY OEM SERVICE PROCEDURE
Transmission Control Module (TCM) DTCS
TRANSMISSION CONTROL MODULE (TCM) - DTC INDEX
| DTC | Description |
|---|---|
| TCM-0001 | Shift solenoid S1. Signal too high (AW50/51 AWD) |
| TCM-0002 | Shift solenoid S1. Signal missing (AW50/51 AWD) |
| TCM-0003 | Shift solenoid S1. Signal too low (AW50/51 AWD) |
| TCM-0007 | Shift solenoid S2. Signal too high (AW50/51 AWD) |
| TCM-0008 | Shift solenoid S2. Signal missing (AW50/51 AWD) |
| TCM-0009 | Shift solenoid S2. Signal too low (AW50/51 AWD) |
| TCM-001F | Vehicle speed sensor (VSS). Signal missing. Intermittent fault (AW50/51 AWD) |
| TCM-001F | Vehicle speed sensor (VSS). Signal missing. Permanent fault (AW50/51 AWD) |
| TCM-0020 | Transmission output speed sensor. Faulty signal. Intermittent fault (AW50/51 AWD) |
| TCM-0020 | Transmission output speed sensor. Faulty signal. Permanent fault (AW50/51 AWD) |
| TCM-0023 | Transmission input speed sensor. Signal missing. Intermittent fault (AW50/51 AWD) |
| TCM-0023 | Transmission input speed sensor. Signal missing. Permanent fault (AW50/51 AWD) |
| TCM-0024 | Transmission input speed sensor. Faulty signal. Intermittent fault (AW50/51 AWD) |
| TCM-0024 | Transmission input speed sensor. Faulty signal. Permanent fault (AW50/51 AWD) |
| TCM-0027 | Back-up (reverse) gear. Incorrect gear ratio (AW50/51 AWD) |
| TCM-0028 | 1st gear. Incorrect gear ratio (AW50/51 AWD) |
| TCM-0029 | 2nd gear. Incorrect gear ratio (AW50/51 AWD) |
| TCM-002A | 3rd gear. Incorrect gear ratio (AW50/51 AWD) |
| TCM-002B | 4th gear. Incorrect gear ratio (AW50/51 AWD) |
| TCM-002C | 5th gear. Incorrect gear ratio (AW50/51 AWD) |
| TCM-002E | Lock-up. The transmission jerks when lock-up engages (AW50/51 AWD) |
| TCM-002F | Lock-up function. Slipping or not engaged (AW50/51 AWD) |
| TCM-0039 | Gear-shift position sensor. Faulty signal (AW50/51 AWD) |
| TCM-0042 | Oil temperature. Temperature too high (AW50/51 AWD) |
| TCM-0043 | Oil temperature sensor. Signal too low (AW50/51 AWD) |
| TCM-0044 | Oil temperature sensor. Signal too high (AW50/51 AWD) |
| TCM-0045 | Oil temperature sensor. Faulty signal (AW50/51 AWD) |
| TCM-0046 | Oil temperature. Oil temperature too high (AW50/51 AWD) |
| TCM-0048 | Control module. Faulty software (AW50/51 AWD) |
| TCM-0049 | Control module. Internal fault. Intermittent fault (AW50/51 AWD) |
| TCM-0049 | Control module. Internal fault. Permanent fault (AW50/51 AWD) |
| TCM-0060 | Control unit. Internal fault (AW50/51 AWD) |
| TCM-0081 | Transmission output speed sensor. Signal too high (AW50/51 AWD) |
| TCM-0083 | Transmission output speed sensor. Signal too low (AW50/51 AWD) |
| TCM-0087 | Transmission input speed sensor. Signal too high (AW50/51 AWD) |
| TCM-0089 | Transmission input speed sensor. Signal too low (AW50/51 AWD) |
| TCM-0090 | Shift lock solenoid. Signal too high (AW50/51 AWD) |
| TCM-0091 | Shift lock solenoid. Signal missing (AW50/51 AWD) |
| TCM-0092 | Shift lock solenoid. Signal too low (AW50/51 AWD) |
| TCM-0093 | Gear selector lever control module communication. Signal too high (AW50/51 AWD) |
| TCM-0094 | Gear selector lever control module communication. Signal missing (AW50/51 AWD) |
| TCM-0095 | Gear selector lever control module communication Signal too low (AW50/51 AWD) |
| TCM-0096 | Quickshift sensor. Faulty signal (AW50/51 AWD) |
| TCM-0097 | Faulty software (AW50/51 AWD) |
| TCM-0098 | Faulty software (AW50/51 AWD) |
| TCM-0099 | Control module. Internal fault (AW50/51 AWD) |
| TCM-009A | Battery voltage. Signal too low (AW50/51 AWD) |
| TCM-0100 | Poor gear shifting quality (AW50/51 AWD) |
| TCM-0101 | Shift solenoid S3. Signal too high (AW50/51 AWD) |
| TCM-0102 | Shift solenoid S3. Signal missing (AW50/51 AWD) |
| TCM-0103 | Shift solenoid S3. Signal too low (AW50/51 AWD) |
| TCM-0107 | Shift solenoid S4. Signal too high (AW50/51 AWD) |
| TCM-0108 | Shift solenoid S4. Signal missing (AW50/51 AWD) |
| TCM-0109 | Shift solenoid S4. Signal too low (AW50/51 AWD) |
| TCM-010A | Shift solenoid S5. Signal too high (AW50/51 AWD) |
| TCM-010B | Shift solenoid S5. Signal missing (AW50/51 AWD) |
| TCM-010C | Shift solenoid S5. Signal too low (AW50/51 AWD) |
| TCM-010D | Lock-up solenoid SLU. Signal too high. Intermittent (AW50/51 AWD) |
| TCM-010D | Lock-up solenoid SLU. Signal too high. Permanent fault (AW50/51 AWD) |
| TCM-010F | Lock-up solenoid SLU. Signal missing. Intermittent fault (AW50/51 AWD) |
| TCM-010F | Lock-up solenoid SLU. Signal missing. Permanent fault (AW50/51 AWD) |
| TCM-0110 | Lock-up solenoid SLU. Signal too low. Intermittent fault (AW50/51 AWD) |
| TCM-0110 | Lock-up solenoid SLU. Signal too low. Permanent fault (AW50/51 AWD) |
| TCM-0112 | Line pressure solenoid SLS. Signal too high. Intermittent fault (AW50/51 AWD) |
| TCM-0112 | Line pressure solenoid SLS. Signal too high. Permanent fault (AW50/51 AWD) |
| TCM-0113 | Line pressure solenoid SLS. Signal missing. Intermittent fault (AW50/51 AWD) |
| TCM-0113 | Line pressure solenoid SLS. Signal missing. Permanent fault (AW50/51 AWD) |
| TCM-0114 | Line pressure solenoid SLS. Signal too low. Intermittent fault (AW50/51 AWD) |
| TCM-0114 | Line pressure solenoid SLS. Signal too low. Permanent fault (AW50/51 AWD) |
| TCM-0115 | Shift solenoid S3. Hydraulic fault (AW50/51 AWD) |
| TCM-0116 | Throttle solenoid SLT. Signal too high. Intermittent fault (AW50/51 AWD) |
| TCM-0116 | Throttle solenoid SLT. Signal too high. Permanent fault (AW50/51 AWD) |
| TCM-0117 | Throttle solenoid SLT. Signal missing. Intermittent fault (AW50/51 AWD) |
| TCM-0117 | Throttle solenoid SLT. Signal missing. Permanent fault (AW50/51 AWD) |
| TCM-0118 | Throttle solenoid SLT. Signal too low. Intermittent fault (AW50/51 AWD) |
| TCM-0118 | Throttle solenoid SLT. Signal too low. Permanent fault (AW50/51 AWD) |
| TCM-0120 | Control unit. Internal fault (AW50/51 AWD) |
| TCM-0121 | Control unit. Internal fault (AW50/51 AWD) |
| TCM-0122 | Control unit. Internal fault (AW50/51 AWD) |
| TCM-0123 | Control unit. Internal fault (AW50/51 AWD) |
| TCM-0124 | Control unit. Internal fault (AW50/51 AWD) |
| TCM-012A | Neutral check Faulty connection (AW50/51 AWD) |
| TCM-012B | Neutral check No neutral check (AW50/51 AWD) |
| TCM-012C | Neutral check. The engine speed (RPM) oscillates (AW50/51 AWD) |
| TCM-E000 | Control module communication. Faulty communication (AW50/51 AWD) |
| TCM-E003 | Configuration fault. Faulty configuration (AW50/51 AWD) |
| TCM-XXXX | Unknown diagnostic trouble code (DTC) for the current control module version (AW50/51 AWD) |
Factory Service Tools
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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.
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