Hyundai Tucson: Vehicle parasitic current inspection
Inspection
Using the Ammeter
- Turn the all electric devices OFF, and then turn the ignition switch OFF.
- Close all doors except the engine hood, and then lock all doors.
(1) Disconnect the hood switch connector.
(2) Close the trunk lid.
(3) Close the doors or remove the door switches.
- Wait for a few minutes until the vehicle's electrical systems go to sleep mode.
WARNING
For an accurate measurement of a vehicle parasitic current, all electrical systems should go to sleep mode. (It takes at least one hour or at most one day.) However, an approximate vehicle parasitic current can be measured after 10-20 minutes.
- Connect an ammeter in series between the battery (-) terminal and the ground cable, and then disconnect the clamp from the battery (-) terminal slowly.
WARNING
Be careful that the lead wires of an ammeter do not come off from the battery (-) terminal and the ground cable to prevent the battery from being reset. In case the battery is reset, connect the battery cable again, and then start the engine or turn the ignition switch ON for more than 10 sec. Repeat the procedure from No. 1.
To prevent the battery from being reset during the inspection:
1) Connect a jump cable between the battery (-) terminal and the ground cable.
2) Disconnect the ground cable from the battery (-) terminal.
3) Connect an ammeter between the battery (-) terminal and the ground cable.
4) After disconnecting the jump cable, read the current value of the ammeter.
- Read the current value of the ammeter.
- If the parasitic current is over the limit value, search for abnormal circuit by removing the fuses one by one and checking for parasitic current.
- Reconnect only the fuse suspected of parasitic current and search for the trouble unit by removing the components connected to the circuit one by one until the parasitic draw drops below limit value
Limit value (after 10 - 20 min.) : Below 50mA
Using the Clamp type Ammeter
- Turn the all electric devices OFF, and then turn the ignition switch OFF.
- Close all doors except the engine hood, and then lock all doors.
(1) Disconnect the hood switch connector.
(2) Close the trunk lid.
(3) Close the doors or remove the door switches.
- Wait for a few minutes until the vehicle's electrical systems go to sleep mode.
WARNING
For an accurate measurement of a vehicle parasitic current, all electrical systems should go to sleep mode. (It takes at least one hour or at most one day.) However, an approximate vehicle parasitic current can be measured after 10 - 20 minutes.
- Install the clamp type ammerter on battery negative (-) terminal.
- Read the current value of the ammeter.
- If the parasitic current is over the limit value, search for abnormal circuit by removing the fuses one by one and checking for parasitic current.
- Reconnect only the fuse suspected of parasitic current and search for the trouble unit by removing the components connected to the circuit one by one until the parasitic draw drops below limit value.
Limit value (after 10 - 20 min.) : Below 50mA
READ NEXT:
CMF Battery
Description
The CMF (Closed Maintenance Free) battery is, as the name implies, totally
maintenance free and has
no removable battery cell caps.
The CMF (Closed Maintenance Free) battery does not require water replenishment
for the repair.
Battery
Removal
Turn the ignition switch OFF and disconnect the battery (-) terminal
(A).
Tightening torque :
7.8 - 9.8 N.m (0.8 - 1.0 kgf.m, 5.8 - 7.2 Ib-ft)
Disconnect the battery (+) terminal (A).
Tightening torque :
7.8 - 9.8 N.m (0.
Battery Condition - Vehicle parasitic current inspection
Inspection
Check the battery for damage or deformation. If severe damage, deformation or
leakage is found, replace the
battery.
Using the Ammeter
Turn the all electric devices OFF, and then turn the ignition switch OFF.
Close all doors exc
SEE MORE:
IMT System Learning Procedures - Adjustment
IMT System Learning Procedures Table
* Refer to the following table to perform the diagnostic tool learning
procedure.
IMT system learning stams can be checked through the cluster lamp.
Ill case by recompiled procedures (1)
Clear
Floor Console - SBW type
SBW type
Floor console side cover
Floor console tray assembly
Floor console upper cover assembly
Floor console rear mounitng bracket
Floor console assembly
Component Location
SBW type
Floor console assembly
SBW type - Repla
Information
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- Hyundai Tucson - Fourth generation (NX4) - (2020-2023) - Workshop Manual