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.
2006 Subaru Outback RFACTORY OEM SERVICE PROCEDURE
Vehicle Dynamics Control (VDC) DTCS
VEHICLE DYNAMICS CONTROL (VDC) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Detailed Code | Display | Content of Diagnosis | Reference |
|---|---|---|---|---|
| C0021 | 698XH | FR sensor power supply failure | Front ABS wheel speed sensor RH power supply malfunction | < Ref. to DTC C0021 FRONT ABS WHEEL SPEED SENSOR RH POWER SUPPLY MALFUNCTION . > |
| 6A0XH | Front Right ABS Sensor Circuit Open or Shorted Battery | Open/high input of front ABS wheel speed sensor RH | < Ref. to DTC C0021 OPEN/HIGH INPUT OF FRONT ABS WHEEL SPEED SENSOR RH . > | |
| C0022 | 68CXH 68EXH 690XH 694XH 696XH |
Front Right ABS Sensor Signal | Front ABS wheel speed sensor RH signal malfunction | < Ref. to DTC C0022 FRONT ABS WHEEL SPEED SENSOR RH SIGNAL MALFUNCTION . > |
| C0023 | 618XH | FL sensor power supply failure | Front ABS wheel speed sensor LH power supply malfunction | < Ref. to DTC C0023 FRONT ABS WHEEL SPEED SENSOR LH POWER SUPPLY MALFUNCTION . > |
| 620XH | Front Left ABS Sensor Circuit Open or Shorted Battery | Open/high input of front ABS wheel speed sensor LH | < Ref. to DTC C0023 OPEN/HIGH INPUT OF FRONT ABS WHEEL SPEED SENSOR LH . > | |
| C0024 | 60CXH 60EXH 610XH 614XH 616XH |
Front Left ABS Sensor Signal | Front ABS wheel speed sensor LH signal malfunction | < Ref. to DTC C0024 FRONT ABS WHEEL SPEED SENSOR LH SIGNAL MALFUNCTION . > |
| C0025 | 658XH | RR sensor power supply failure | Rear ABS wheel speed sensor RH power supply malfunction | < Ref. to DTC C0025 REAR ABS WHEEL SPEED SENSOR RH POWER SUPPLY MALFUNCTION . > |
| 660XH | Rear Right ABS Sensor Circuit Open or Shorted Battery | Open/high input of rear ABS wheel speed sensor RH | < Ref. to DTC C0025 OPEN/HIGH INPUT OF REAR ABS WHEEL SPEED SENSOR RH . > | |
| C0026 | 64CXH 64EXH 650XH 654XH 656XH |
Rear Right ABS Sensor Signal | Rear ABS wheel speed sensor RH signal malfunction | < Ref. to DTC C0026 REAR ABS WHEEL SPEED SENSOR RH SIGNAL MALFUNCTION . > |
| C0027 | 6D8XH | RL sensor power supply failure | Rear ABS wheel speed sensor LH power supply Malfunction | < Ref. to DTC C0027 REAR ABS WHEEL SPEED SENSOR LH POWER SUPPLY MALFUNCTION . > |
| 6E0XH | Rear Left ABS Sensor Circuit Open or Shorted Battery | Open/high input of rear ABS wheel speed sensor LH | < Ref. to DTC C0027 OPEN/HIGH INPUT OF REAR ABS WHEEL SPEED SENSOR LH . > | |
| C0028 | 6CCXH 6CEXH 6D0XH 6D4XH 6D6XH |
Rear Left ABS Sensor Signal | Rear ABS wheel speed sensor LH signal malfunction | < Ref. to DTC C0028 REAR ABS WHEEL SPEED SENSOR LH SIGNAL MALFUNCTION . > |
| C0029 | 608XH 648XH 688XH 6C8XH 704XH 606XH 646XH 686XH 6C6XH 702XH 604XH 644XH 684XH 6C4XH 70CXH 720XH 710XH |
Any One of Four ABS Sensors Signal | ABS wheel speed sensor signal malfunction in one of four wheels | < Ref. to DTC C0029 ABS WHEEL SPEED SENSOR SIGNAL MALFUNCTION IN ONE OF FOUR WHEELS . > |
| C0031 | 320XH | FR hold valve malfunction | Front inlet solenoid valve RH malfunction in VDCCM&H/U | < Ref. to DTC C0031 FRONT INLET SOLENOID VALVE RH MALFUNCTION IN VDCCM&H/U . > |
| C0032 | 360XH | FR pressure reducing valve malfunction | Front outlet solenoid valve RH malfunction in VDCCM&H/U | < Ref. to DTC C0032 FRONT OUTLET SOLENOID VALVE RH MALFUNCTION IN VDCCM&H/U . > |
| C0033 | 220XH | FL hold valve malfunction | Front inlet solenoid valve LH malfunction in VDCCM&H/U | < Ref. to DTC C0033 FRONT INLET SOLENOID VALVE LH MALFUNCTION IN VDCCM&H/U . > |
| C0034 | 260XH | FL pressure reducing valve malfunction | Front outlet solenoid valve LH malfunction in VDCCM&H/U | < Ref. to DTC C0034 FRONT OUTLET SOLENOID VALVE LH MALFUNCTION IN VDCCM&H/U . > |
| C0035 | 2A0XH | RR hold valve malfunction | Rear inlet solenoid valve RH malfunction in VDCCM&H/U | < Ref. to DTC C0035 REAR INLET SOLENOID VALVE RH MALFUNCTION IN VDCCM&H/U . > |
| C0036 | 2E0XH | RR pressure reducing valve malfunction | Rear outlet solenoid valve RH malfunction in VDCCM&H/U | < Ref. to DTC C0036 REAR OUTLET SOLENOID VALVE RH MALFUNCTION IN VDCCM&H/U . > |
| C0037 | 3A0XH | RL hold valve malfunction | Rear inlet solenoid valve LH malfunction in VDCCM&H/U | < Ref. to DTC C0037 REAR INLET SOLENOID VALVE LH MALFUNCTION IN VDCCM&H/U . > |
| C0038 | 3E0XH | RL pressure reducing valve malfunction | Rear outlet solenoid valve LH malfunction in VDCCM&H/U | < Ref. to DTC C0038 REAR OUTLET SOLENOID VALVE LH MALFUNCTION IN VDCCM&H/U . > |
| C0061 | 4A0XH | VDC switching valve 1 (S) | Secondary cut valve malfunction in VDCCM&H/U | < Ref. to DTC C0061 SECONDARY CUT VALVE MALFUNCTION IN VDCCM&H/U . > |
| C0062 | 4E0XH | VDC switching valve 1 (P) | Primary cut valve malfunction in VDCCM&H/U | < Ref. to DTC C0062 PRIMARY CUT VALVE MALFUNCTION IN VDCCM&H/U . > |
| C0063 | 520XH | VDC switching valve 2 (S) | Secondary suction valve malfunction in VDCCM&H/U | < Ref. to DTC C0063 SECONDARY SUCTION VALVE MALFUNCTION IN VDCCM&H/U . > |
| C0064 | 560XH | VDC switching valve 2 (P) | Primary suction valve malfunction in VDCCM&H/U | < Ref. to DTC C0064 PRIMARY SUCTION VALVE MALFUNCTION IN VDCCM&H/U . > |
| C0041 | 000XH 002XH 004XH 006XH 010XH 012XH 014XH 016XH 018XH 01AXH 01EXH 024XH 026XH 028XH 02AXH 02CXH 02EXH 030XH 03AXH 03CXH 03DXH 03EXH 034XH 036XH 038XH |
ECM | VDC control module malfunction | < Ref. to DTC C0041 VDC CONTROL MODULE MALFUNCTION . > |
| C0042 | 7CEXH 7D0XH |
Power Supply Voltage Failure | Power voltage malfunction | < Ref. to DTC C0042 POWER VOLTAGE MALFUNCTION . > |
| 7CCXH | Speed sensor. power supply failure | ABS wheel speed sensor power malfunction | < Ref. to DTC C0042 ABS WHEEL SPEED SENSOR POWER MALFUNCTION . > | |
| C0044 | 9A0XH | TCM communication circuit | CAN communication malfunction of transmission control module | < Ref. to DTC C0044 AT COMMUNICATION . > |
| C0045 | 970XH 822XH |
Incorrect VDC Control Module specifications | Different VDC control module specification | < Ref. to DTC C0045 DIFFERENT VDC CONTROL MODULE SPECIFICATION . > |
| 972XH | TCM malfunction | AT control module malfunction | < Ref. to DTC C0045 AT CONTROL MODULE MALFUNCTION . > | |
| C0047 | 788XH 78CXH 7A0XH 7A4XH |
Improper CAN communication | Improper CAN communication | < Ref. to DTC C0047 IMPROPER CAN COMMUNICATION . > |
| C0051 | 048XH | Valve relay OFF malfunction | Valve relay OFF malfunction | < Ref. to DTC C0051 VALVE RELAY OFF MALFUNCTION . > |
| 04AXH 04CXH |
Valve Relay | Valve relay malfunction | < Ref. to DTC C0051 VALVE RELAY MALFUNCTION . > | |
| 06AXH | Valve relay test failure | Valve relay test malfunction | < Ref. to DTC C0051 VALVE RELAY TEST MALFUNCTION . > | |
| 00DXH | Valve relay ON failure | Valve relay ON malfunction | < Ref. to DTC C0051 VALVE RELAY ON MALFUNCTION . > | |
| C0052 | 58AXH | Motor and Motor Relay | Motor/motor relay malfunction | < Ref. to DTC C0052 MOTOR/MOTOR RELAY MALFUNCTION . > |
| 5A0XH | Motor and motor relay OFF failure | Motor/motor relay OFF malfunction | < Ref. to DTC C0052 MOTOR/MOTOR RELAY OFF MALFUNCTION . > | |
| 58EXH | Motor and motor relay ON failure | Motor/motor relay ON malfunction | < Ref. to DTC C0052 MOTOR/MOTOR RELAY ON MALFUNCTION . > | |
| 58CXH | Motor malfunction | Motor | < Ref. to DTC C0052 MOTOR . > | |
| C0054 | 0A0XH | Brake Light Switch | BLS open circuit | < Ref. to DTC C0054 BLS OPEN CIRCUIT . > |
| 08CXH | BLS ON malfunction | BLS ON malfunction | < Ref. to DTC C0054 BLS ON MALFUNCTION . > | |
| C0057 | 820XH | ECM communication circuit | CAN communication malfunction of engine control module | < Ref. to DTC C0057 ECM COMMUNICATION . > |
| C0071 | 148XH | Steering angle sensor offset is too big | Excessive steering angle sensor output offset | < Ref. to DTC C0071 EXCESSIVE STEERING ANGLE SENSOR OUTPUT OFFSET . > |
| 14AXH | Change range of steering angle sensor is too big | Excessive variation amount of steering angle sensor output | < Ref. to DTC C0071 EXCESSIVE VARIATION AMOUNT OF STEERING ANGLE SENSOR OUTPUT . > | |
| 142XH 144XH 146XH 14EXH 158XH 15AXH 15CXH 15EXH 14CXH 164XH 166XH 16AXH 16CXH 16EXH 170XH |
Steering angle sensor malfunction | Steering angle sensor output | < Ref. to DTC C0071 STEERING ANGLE SENSOR OUTPUT . > | |
| 160XH | No signal from steering angle sensor | Steering angle sensor communication | < Ref. to DTC C0071 STEERING ANGLE SENSOR COMMUNICATION . > | |
| 764XH | Steering angle sensor power supply malfunction | Steering angle sensor power supply malfunction | < Ref. to DTC C0071 STEERING ANGLE SENSOR POWER SUPPLY MALFUNCTION . > | |
| C0072 | 184XH 188XH 18EXH |
Abnormal yaw rate sensor output | Yaw rate sensor output | < Ref. to DTC C0072 YAW RATE SENSOR OUTPUT . > |
| 180XH 182XH 186XH 190XH 194XH 196XH 198XH 19AXH |
Abnormal yaw rate sensor output | Yaw rate sensor output | < Ref. to DTC C0072 YAW RATE SENSOR OUTPUT . > | |
| 192XH | Abnormal yaw rate sensor output | Yaw rate sensor output | < Ref. to DTC C0072 YAW RATE SENSOR OUTPUT . > | |
| 1A0XH 18BXH |
Voltage inputted to yaw rate sensor exceeds specification | Yaw rate sensor power supply/output | < Ref. to DTC C0072 YAW RATE SENSOR POWER/OUTPUT . > | |
| 19CXH | Abnormal yaw rate sensor reference voltage | Yaw rate sensor reference | < Ref. to DTC C0072 YAW RATE SENSOR REFERENCE . > | |
| 18CXH | Change range of yaw rate sensor signal is too big | Excessive variation amount of yaw rate sensor output | < Ref. to DTC C0072 EXCESSIVE VARIATION AMOUNT OF YAW RATE SENSOR OUTPUT . > | |
| C0073 | 1C8XH 1CAXH |
Lateral G sensor offset is too big | Excessive amount of lateral G sensor output offset | < Ref. to DTC C0073 EXCESSIVE AMOUNT OF LATERAL G SENSOR OUTPUT OFFSET . > |
| 1C0XH 1C6XH 1D8XH |
Abnormal lateral G sensor output | Lateral G sensor output | < Ref. to DTC C0073 LATERAL G SENSOR OUTPUT . > | |
| 1CCXH | Change range of lateral G sensor is too big | Excessive variation amount of lateral G sensor output | < Ref. to DTC C0073 EXCESSIVE VARIATION AMOUNT OF LATERAL G SENSOR OUTPUT . > | |
| 1D2XH | Excessive lateral G sensor signal | Excessive lateral G sensor output | < Ref. to DTC C0073 EXCESSIVE LATERAL G SENSOR OUTPUT . > | |
| 1E0XH | Voltage inputted to lateral G sensor exceeds specification | Lateral G sensor power/output | < Ref. to DTC C0073 LATERAL G SENSOR POWER/OUTPUT . > | |
| C0074 | 118XH | Pressure sensor test failure | Pressure sensor test malfunction | < Ref. to DTC C0074 PRESSURE SENSOR TEST MALFUNCTION . > |
| 110XH | Pressure sensor offset is too big | Excessive pressure sensor output offset | < Ref. to DTC C0074 EXCESSIVE PRESSURE SENSOR OUTPUT OFFSET . > | |
| 120XH 113XH |
Pressure sensor power/output | Pressure sensor power/output | < Ref. to DTC C0074 PRESSURE SENSOR POWER/OUTPUT . > | |
| 102XH 108XH |
Pressure sensor output | Pressure sensor output | < Ref. to DTC C0074 PRESSURE SENSOR OUTPUT . > | |
| 124XH | Pressure sensor power supply malfunction | Pressure sensor power supply malfunction | < Ref. to DTC C0074 PRESSURE SENSOR POWER MALFUNCTION . > | |
| C0081 | 746XH | System malfunction | System malfunction | < Ref. to DTC C0081 SYSTEM MALFUNCTION . > |
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
