6.
Measure resistance between terminal 1, 2, 3 of PTC heater and ground line.
Resistance : 0.3 ~ 1.5Ω
1. - 2. STEP 3 | 3. STEP 2 4. STEP 1 |
This test should be performed in the PTC ON conditions.
Run the engine.
Check the current on wiring with a clamp multi tester.
Pattern | Current (A) |
STEP 1 ON | 0.1 ~33 |
STEP 2 ON | 0.1 ~ 33 |
STEP 3 ON | 0.1 ~ 33 |
Total | 0.1 ~ 100 |
If the current is not in specification, inspect related wiring.
Turn the ignition switch OFF.
Disconnect the PTC heater connector.
Measure resistance between terminal 1, 2, 3 of PTC heater and ground line.
Resistance : 0.3 ~ 1.5Ω
1. - 2. STEP 3 | 3. STEP 2 4. STEP 1 |
If the measured resistance is not in specification, replace the PTC heater with new one.
Disconnect the negative (-) battery terminal.
Remove the extension side cover (A).
Disconnect the PTC heater connector (A) and the ground line (B).
Loosen the PTC heater mounting screw and then remove the PTC heater core(C).
Installation is the reverse order of removal.
