DTC P058A-01: Auxiliary Battery Monitor Module Range/Performance [11/2023 - ]: Description
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The battery state sensor assembly detects the auxiliary voltage, current and temperature of the auxiliary battery. The battery state sensor assembly calculates State of Charge (SOC) based on the voltage and current of the auxiliary battery and sends it to the hybrid vehicle control ECU. Based on the signals received, the hybrid vehicle control ECU adjusts the charging voltage of the DC/DC converter.
The battery state sensor assembly calculates the auxiliary battery temperature based on changes in resistance of a built-in thermistor and sends it to the hybrid vehicle control ECU. The hybrid vehicle control ECU reduces the amount of charging current based on this signal in order to protect the auxiliary battery.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Memory |
|---|---|---|---|---|---|
| P058A-01 | Auxiliary Battery Monitor Module Range/Performance | Any of the following conditions is met with the ignition switch ON. (1 trip detection logic):
|
|
Charge warning is not displayed | DTC stored |
DTC DETECTION CONDITION
| Vehicle Condition | |||||||
| Pattern 1 | Pattern 2 | Pattern 3 | Pattern 4 | Pattern 5 | Pattern 6 | ||
| Diagnosis Condition | Ignition switch is ON | ◦ | ◦ | ◦ | ◦ | ◦ | ◦ |
| Malfunction Status | Current value is 999.939 A or more | ◦ | - | - | - | - | - |
| Current value is -1000 A or less | - | ◦ | - | - | - | - | |
| Current detection circuit malfunction condition is received | - | - | ◦ | - | - | - | |
| Auxiliary battery temperature is 105°C or more | - | - | - | ◦ | - | - | |
| Auxiliary battery temperature is -40°C or less | - | - | - | - | ◦ | - | |
| Temperature detection circuit malfunction signal is received | - | - | - | - | - | ◦ | |
| Detection Time | 3.2 seconds or more | 3.2 seconds or more | 3.2 seconds or more | 12.288 seconds or more | 12.288 seconds or more | 12.288 seconds or more | |
| Number of Trips | 1 trip | 1 trip | 1 trip | 1 trip | 1 trip | 1 trip | |
DTC DETECTION CONDITION
| Vehicle Condition | ||||||
| Pattern 7 | Pattern 8 | Pattern 9 | Pattern 10 | Pattern 11 | ||
| Diagnosis Condition | Ignition switch is ON | ◦ | ◦ | ◦ | ◦ | ◦ |
| Malfunction Status | Voltage value remains at 15.98 V or more | ◦ | - | - | - | - |
| Voltage value remains at 6.0 V or less | - | ◦ | - | - | - | |
| Voltage detection circuit malfunction signal is received | - | - | ◦ | - | - | |
| Writing error occurs in auxiliary battery state sensor internal memory (battery identification data) | - | - | - | ◦ | - | |
| Pulse discharge circuit malfunction condition continues | - | - | - | - | ◦ | |
| Detection Time | 3.2 seconds or more | 3.2 seconds or more | 3.2 seconds or more | - | 4.608 seconds or more | |
| Number of Trips | 1 trip | 1 trip | 1 trip | 1 trip | 1 trip | |