Lexus ES: Auxiliary Battery Monitor Module Range/Performance (P058A01)
DESCRIPTION
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 |
P058A01 | Auxiliary Battery Monitor Module Range/Performance | Any of the following conditions is met with the power switch on (IG). (1 trip detection logic): -
Current is 999.939 A or more, or -1000 A or less for 3.2 seconds or more.
-
The difference between the maximum and minimum current is 0.0305 A or less for 100 seconds or more.
-
A current detection circuit malfunction signal is received.
-
The auxiliary battery temperature is 105°C (221°F) or more, or -40°C (-40°F) or less for 3.2 seconds or more.
-
A temperature detection circuit malfunction signal is received.
-
Voltage is 15.98 V or more, or 6.0 V or less for 3.2 seconds or more.
-
A voltage detection circuit malfunction signal is received.
-
A writing error occurs in the auxiliary battery state sensor internal memory (battery identification data).
| -
Battery state sensor assembly
-
Auxiliary battery
-
Wire harness or connector
| Charge warning is not displayed | DTC stored |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
Inspect the fuses for circuits related to this system before performing the following procedure.
-
When P162B87 (Lost Communication with Battery Monitor Module Missing Message) is output at the same time, perform troubleshooting for P162B87 (Lost Communication with Battery Monitor Module Missing Message) first.
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PROCEDURE
1. | CHECK BATTERY STATE SENSOR ASSEMBLY |
(a) Check installation condition of the battery state sensor assembly.
NG | | INSTALL THE BATTERY STATE SENSOR ASSEMBLY CORRECTLY |
OK | | |
2. | CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) |
(a) Check that the battery state sensor assembly connector is securely connected.
OK:
The connector is securely connected.
(b) Disconnect the R6 battery state sensor assembly connector.
(c) Check the connector case and terminals for deformation or corrosion.
OK:
No deformation or corrosion.
(d) Measure the voltage according to the value(s) in the table below. Standard Voltage: Tester Connection | Condition | Specified Condition | R6-1 (+B) - Body ground | Power switch off | 11 to 14 V | | | *a | Front view of wire harness connector (to Battery State Sensor Assembly) | | |
NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR (AUXILIARY BATTERY - BATTERY STATE SENSOR ASSEMBLY) |
READ NEXT:
ON-VEHICLE INSPECTION PROCEDURE 1. CHECK AUXILIARY BATTERY (a) Check that the auxiliary battery cables are connected to the correct terminals. If they are not, connect them properly. (b) Check the aux
DIAGNOSTIC TROUBLE CODE CHART Charging System DTC No. Detection Item Warning Indicate Memory Link P058A01 Auxiliary Battery Monitor Module Range/Performance Charge warning is not di
DIAGNOSTIC TROUBLE CODE CHART Charging System DTC No. Detection Item Warning Indicate Memory Link P058A01 Auxiliary Battery Monitor Module Range/Performance Charge warning is not di
SEE MORE:
COMPONENTS ILLUSTRATION *A for 2WD *B for AWD *1 REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH - - N*m (kgf*cm, ft.*lbf): Specified torque - -
CAUTION / NOTICE / HINT When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out for all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic engine check shown in the following procedure, the location of the problem ca
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