DTC Code | DTC Name |
---|---|
P1550 | Battery Current Sensor Circuit |
P1551 | Battery Current Sensor Circuit Low |
P1552 | Battery Current Sensor Circuit High |
DESCRIPTION
The battery current sensor built into the generator control ECU assembly detects the amount of charge/discharge current. The generator control ECU assembly sends voltage generation instructions to the generator assembly based on this signal.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
---|---|---|---|---|---|
P1550 | Battery Current Sensor Circuit |
Difference between the maximum and minimum current values of the battery current sensor is less than 1 A for 10 seconds or more with the ignition switch ON (1 trip detection logic) |
|
Does not come on | DTC stored |
P1551 | Battery Current Sensor Circuit Low |
Battery current sensor output value is abnormally low for 30 seconds or more with the ignition switch ON (1 trip detection logic) |
|
Does not come on | DTC stored |
P1552 | Battery Current Sensor Circuit High |
Battery current sensor output value is abnormally high for 30 seconds or more with the ignition switch ON (1 trip detection logic) |
|
Does not come on | DTC stored |
PROCEDURE
CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P1550, P1551 OR P1552)
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Charging Control / Trouble Codes.
Read the DTCs.
Body Electrical > Charging Control > Trouble CodesResult | ||||||
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|
If any DTCs other than P1550, P1551 or P1552 are output, troubleshoot those DTCs first.
Turn the ignition switch off.
B |
GO TO DTC CHART Click hereНажмите здесь |
A |
READ VALUE USING GTS (BATTERY CURRENT)
Turn all of the electrical systems (headlights, blower motor, rear defogger, etc.) off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Body Electrical / Charging Control / Data List / Battery Current.
Body Electrical > Charging Control > Data ListTester Display |
---|
Battery Current |
Result | ||||||
---|---|---|---|---|---|---|
|
Turn the ignition switch off.
B |
CHECK FOR INTERMITTENT PROBLEMS Click here Нажмите здесь |
A |
CHECK HARNESS AND CONNECTOR (GENERATOR CONTROL ECU ASSEMBLY - GENERATOR ASSEMBLY)
Disconnect the A52 generator control ECU assembly connector.
Disconnect the B39 generator assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open) | ||||||
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|
Standard Resistance (Check for Short) | ||||||
---|---|---|---|---|---|---|
|
Reconnect the B39 generator assembly connector.
Reconnect the A52 generator control ECU assembly connector.
Result | |||
---|---|---|---|
|
OK |
REPLACE GENERATOR CONTROL ECU ASSEMBLY Click hereНажмите здесь |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |