Dtc P1602 Deterioration Of Battery

Двигатель. Toyota Rav4. Aca30, 33, 38 Ala30
Система Управления Двигателем 2Az-Fe. Toyota Rav4. Aca30, 33, 38 Ala30

DESCRIPTION

INSPECTION PROCEDURE

INSPECT BATTERY

DTC P1602 Deterioration of Battery


DESCRIPTION

The ECM determines the battery power according to the voltage of the BATT terminal while the engine is running (not cranking).

DTC No.
DTC Detection Condition
Trouble Area
P1602
Battery power is 0%
  1. Battery
  2. ECM back-up power source circuit

INSPECTION PROCEDURE

1.INSPECT BATTERY
  1. Inspect battery specific gravity
    1. Check the specific gravity of each cell.
      Standard gravity:
      1.25 to 1.29 at 20°C (68°F)
  2. Inspect battery voltage
    1. After the vehicle is driven for 20 minutes, stop the engine.
    2. Turn the ignition switch on (IG), and turn on the headlights, blower fan and defogger for 1 minute.
    3. Turn the ignition switch off.
    4. Measure the battery voltage.
      Standard voltage:
      12.5 to 12.9 V at 20°C (68°F)


NG
REPLACE BATTERY
OK

CHECK ECU POWER SOURCE CIRCUIT