DTC Symptom Description: Example
The DTC symptoms associated with each DTC provide more information about the fault that caused that DTC. An example of a DTC displayed can be B1451 05 where the B1451 is the DTC, and 05 after the space represents the DTC symptom. While the DTC indicates that the fault is in the accessory power circuit, this DTC symptom indicates the circuit is shorted to battery or open. Another possible symptom for this code is B1451 02, where B1451 indicates the accessory power circuit, and 02 indicates the circuit is shorted to ground.
DTC Symptom Description
| DTC Symptom | DTC Symptom Description |
|---|---|
| 00 | No Additional Information |
| 01 | Short to Battery |
| 02 | Short to Ground |
| 03 | Voltage Below Threshold |
| 04 | Open Circuit |
| 05 | Short to Battery or Open |
| 06 | Short to Ground or Open |
| 07 | Voltage Above Threshold |
| 08 | Signal Invalid |
| 09 | Rate of Change Above Threshold |
| 0A | Rate of Change Below Threshold |
| 0B | Current Above Threshold |
| 0C | Current Below Threshold |
| 0D | Resistance Above Threshold |
| 0E | Resistance Below Threshold |
| 0F | Erratic |
| 10 | Reserved |
| 11 | Above Maximum Threshold |
| 12 | Below Minimum Threshold |
| 13 | Voltage Low/High Temperature |
| 14 | Voltage High/Low Temperature |
| 15 | Signal Rising Time Failure |
| 16 | Signal Falling Time Failure |
| 17 | Signal Shape/Waveform Failure |
| 18 | Signal Amplitude Less Than Minimum |
| 19 | Signal Amplitude Greater Than Maximum |
| 1A | Bias Level Out of Range |
| 1F | Intermittent |
| 21 | Incorrect Period |
| 22 | Low Time Less Than Minimum |
| 23 | Low Time Greater Than Maximum |
| 24 | High Time Less Than Minimum |
| 25 | High Time Greater Than Maximum |
| 26 | Frequency Too Low |
| 27 | Frequency Too High |
| 28 | Incorrect Frequency |
| 29 | Too Few Pulses |
| 2A | Too Many Pulses |
| 2B | Missing Reference |
| 2C | Reference Compare Error |
| 31 | General Checksum Failure |
| 32 | General Memory Failure |
| 33 | Special Memory Failure |
| 34 | RAM Failure |
| 35 | ROM Failure |
| 36 | EEPROM Failure |
| 37 | Watchdog/Safety Processor Failure |
| 38 | Supervision Software Failure |
| 39 | Internal Electronic Failure |
| 41 | Operational Software/Calibration Data Set Not Programmed |
| 42 | Calibration Data Set Not Programmed |
| 43 | EEPROM Error |
| 44 | Security Access Not Activated |
| 45 | Variant Not Programmed |
| 46 | Vehicle Configuration Not Programmed |
| 47 | VIN Not Programmed |
| 48 | Theft/Security Data Not Programmed |
| 49 | RAM Error |
| 4A | Checksum Error |
| 4B | Calibration Not Learned |
| 51 | Calculation Failure |
| 52 | Compare Failure |
| 53 | Temperature Low |
| 54 | Temperature High |
| 55 | Expected Number of Transitions/Events Not Reached |
| 56 | Allowable Number of Transitions/Events Exceeded |
| 57 | Expected Reaction After Event Did Not Occur |
| 58 | Incorrect Reaction After Event |
| 59 | Circuit/Component Protection Time-Out |
| 61 | Actuator Stuck |
| 62 | Actuator Stuck Open |
| 63 | Actuator Stuck Closed |
| 64 | Actuator Slipping |
| 65 | Emergency Position Not Reachable |
| 71 | Invalid Serial Data Received (Signal Validity Bit Indicates Failure) |
| 72 | Alive Counter Incorrect/Not Updated |
| 73 | Parity Error |
| 74 | Value of Signal Protection Calculation Incorrect |
| 75 | Signal Above Allowable Range |
| 76 | Signal Below Allowable Range |
| 7F | Erratic |