Inspection |
1. |
Disconnect the negative (-) battery terminal. |
2. |
Remove the front seat heater switch.
(Refer to BE group - "Seat heater switch") |
3. |
Remove the PDM relay box (A) after loosening the screws (2EA) and desconnecting the connector. |
1. |
There should be continuity between the No.1 in the B and No.2
in the B terminals when power and ground are connected to the No.3 in
the A and No.4 terminals in the A terminals. |
2. |
There should be no continuity between the No.1 in the B and No.2 terminals in the B terminals when power is disconnected. |
1. |
There should be continuity between the No.7 in the A and No.8
in the A terminals when power and ground are connected to the No.3 in
the A and No.10 terminals in the A terminals. |
2. |
There should be no continuity between the No.7 in the A and No.8 terminals in the A terminals when power is disconnected. |
1. |
There should be continuity between the No.7 in the A and No.6
in the A terminals when power and ground are connected to the No.1 in
the A and No.3 terminals in the A terminals. |
2. |
There should be no continuity between the No.7 in the A and No.6 terminals in the A terminals when power is disconnected. |
Hyundai Tucson (LM) 2010-2015 Service Manual: 4WD ECU Schematic Diagrams
Circuit Diagram
4WD ECU Connector
PinFunction1CAN communication line (Low)2CAN communication line (High)3-4Pressure sensor signal(+)5-6Lock mode switch7Oil pressure motor B8Oil pressure motor A9-10-11Pressure sensor(Input)12Input sensor signal(-)13Battery power 14Ground15IG power16-17-1 ...
Hyundai Tucson (LM) 2010-2015 Service Manual: Heater Unit Repair procedures
Replacement
1.
Disconnect the negative (-) battery terminal.
2.
Recover the refrigerant with a recovery/ recycling/ charging station.
3.
When the engine is cool, drain the engine coolant from the radiator.
4.
Remove the expansion valve cover (A).
5.
Remove the bolts (A) and t ...