Toyota Yaris: Charging System / Deterioration of Battery Low Capacity (P160200)

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Power Source & Network / G16e-gts (battery / Charging) / Charging System / Deterioration of Battery Low Capacity (P160200)

DESCRIPTION

The auxiliary battery condition is calculated from the voltage when the engine is running (except when cranking) and then output to the ECM. A DTC is output when auxiliary battery degradation is determined based on this signal.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
P160200	Deterioration of Battery Low Capacity	While engine is running (except when cranking), auxiliary battery capacity is abnormally low for 10 seconds or more. (1 trip detection logic)	Auxiliary battery Wire harness or connector	Does not come on	SAE Code: P1602

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Note

P160200

Deterioration of Battery Low Capacity

While engine is running (except when cranking), auxiliary battery capacity is abnormally low for 10 seconds or more.

(1 trip detection logic)

Auxiliary battery
Wire harness or connector

Does not come on

SAE Code: P1602

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1.	CHECK CHARGING SYSTEM

Click here

REPAIR OR REPLACE CHARGING SYSTEM

2.	CHECK HARNESS AND CONNECTOR (POWER SOURCE OF ECM)

(a) Disconnect the ECM connector.

*a	Front view of wire harness connector (to ECM)

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Condition	Specified Condition
A106-1 (BATT) - Body ground	Always	11 to 14 V

CHECK FOR INTERMITTENT PROBLEMS

REPAIR OR REPLACE HARNESS OR CONNECTOR

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