Hyundai Tucson: Body Electrical System / Multifunction Switch
Components and Components Location
1. Steering column
2. Lighting swtich
3. Wiper switch
4. Clock spring
5. Steering wheel
6. Driver airbag (DAB)
Specifications
| Items | Specifications | |
| Rated voltage | DC 12V | |
| Operating temperature range | -22 to +176°F (-30°C to +80°C) | |
| Rated load | Dimmer & passing switch | High : 0.2A (Relay load) Low : 0.2A (Relay load) Passing : 0.2A (Relay load) |
| Lighting switch | Lighting : 0.2A (Relay load) (High, Low, Auto) | |
| Turn signal switch | 6.6A | |
| Fog lamp switch | 0.2A (Relay load) | |
| Wiper & mist switch | Low : 4.5A (Motor load) High : 4.5A (Motor load) Intermittent : 0.25mA Lock : Max. 28A (Motor load) Washer : 4.0A (Motor load) | |
| Rear wiper & washer | Wiper : 1.0A (Relay load) Washer : 4.0A (Motor load) | |
Repair procedures
1.Disconnect the negative (-) battery terminal.
2.Remove the clock spring.(Refer to Restraint - "Driver Airbag(DAB) and Clock Spring")
3.Disconnect multifunction switch assembly connector (A).
4.Remove the multifunction switch assembly (B) after loosening the clamp (A).
Tightening torque : 4.5 - 6.5 N.m (0.5 - 0.7 kgf.m, 3.3 - 4.8 lb-ft)
1.Install the multifunction switch assembly.
2.Install the steering column upper and lower shrouds.
3.Install the steering wheel.
4.Connect the negative (-) battery terminal.
1.Check for continuity between the terminals in each switch position as shown below.
| Switch | Switch position | Resistance (Ω, ±3.5%) |
| Front wiper switch | MIST | 330 |
| OFF | ∞ | |
| INT (AUTO) | 800 | |
| LOW | 1800 | |
| HIGH | 5700 | |
| Front wiper intermittent volume | Volume 1 | 330 |
| Volume 2 | 690 | |
| Volume 3 | 1310 | |
| Volume 4 | 2610 | |
| Volume 5 | 7310 | |
| Rear wiper switch | OFF | ∞ |
| LOW | 910 | |
| HIGH | 2910 | |
| Fog lamp switch | OFF | ∞ |
| Front foglamp | 910 | |
| Rear foglamp | 2910 | |
| Turn signal switch | OFF | ∞ |
| Rear bumper left | 910 | |
| Left | 2910 | |
| Rear bumper right | 910 | |
| Right | 2910 | |
| Dimmer & Passing switch | OFF | ∞ |
| Passing | 910 | |
| Dimmer | 2910 | |
| Light switgh | OFF | 680 |
| AUTO / DRL | 1680 | |
| Tail lamp | 5580 | |
| Low beam | ∞ |
1.In the body electrical system, failure can be quickly diagnosed by using the vehicle diagnostic system (diagnostic tool).The diagnostic system (diagnostic tool) provides the following information.
(1)Fault Code Searching : Checking failure and code number (DTC)
(2)Data Analysis : Checking the system input/output data state
(3)Actuation test : Checking the system operation condition
(4)S/W Management : Controlling other features including system option setting and zero point adjustment
2.If diagnose the vehicle by diagnostic tool, select "DTC Analysis" and "Vehicle".
3.If check current status, select the "Data Analysis" and "Car model".
4.Select the 'IBU_BCM' to search the current state of the input/output data.
Mic
- Inspection
1.Disconnect the negative (-) battery terminal.
2.Remove the overhead console.(Body Electrical System - "Overhead Console Lamp")
3.Check for continuity between terminal No. 1 and ...
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