Steering Control Module Switches
WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
To avoid personal injury or death, on vehicles equipped with airbags, disable the supplemental restraint system before attempting any steering wheel, steering column, airbag, occupant classification system, seat belt tensioner, impact sensor, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the supplemental restraint system. Failure to take the proper precautions could result in accidental airbag deployment.
The left multi-function switch and right multi-function switch can be diagnosed using conventional diagnostic tools and methods. However, proper testing of the multiplexed inputs to the Steering Control Module (SCM) requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.
NOTE:
Only the effected cavities are listed in each of the tables.
LEFT MULTI-FUNCTION (LIGHTING CONTROL) SWITCH RESISTANCE - TURN AND BEAM SELECT
| FUNCTION | CAVITY | RESISTANCE | ||
| 1 | 2 | 3 | ||
| Neutral | X | X | X | Open |
| Right Turn | - | X | X | 0 Ohms |
| Left Turn | - | X | X | 649 Ohms |
| High Beam | X | X | - | 649 Ohms |
| Flash to Pass | X | X | - | 0 Ohms |
LEFT MULTI-FUNCTION (LIGHTING CONTROL) SWITCH RESISTANCE - EXTERIOR LAMPS
| FUNCTION | CAVITY | RESISTANCE | |||
| 4 | 5 | 6 | 7 | ||
| Off | X | - | X | 869 Ohms | |
| Park Lamps | - | - | X | X | 221 Ohms |
| Headlamps | X | - | X | 221 Ohms | |
| Auto | - | - | X | X | 69 Ohms |
| Fog Lamps | - | X | X | 0 Ohms | |
NOTE:
Only the cavities being tested are listed in each of the tables.
RIGHT MULTI-FUNCTION (WIPER/WASHER) SWITCH RESISTANCE - WASH AND MIST
| FUNCTION | CAVITY | RESISTANCE | |
| 1 | 2 | ||
| Wash | X | X | 0 Ohms |
| Mist | X | X | 650 Ohms |
RIGHT MULTI-FUNCTION (WIPER/WASHER) SWITCH RESISTANCE - FRONT WIPER FUNCTIONS
| FUNCTION | CAVITY | RESISTANCE | |
| 7 | 9 | ||
| Off | X | X | 1581 Ohms |
| Delay 1 | X | X | 695 Ohms |
| Delay 2 | X | X | 463 Ohms |
| Delay 3 | X | X | 323 Ohms |
| Delay 4 | X | X | 232 Ohms |
| Delay 5 | X | X | 169 Ohms |
| Low | X | X | 96 Ohms |
| High | X | X | 0 Ohms |
RIGHT MULTI-FUNCTION (WIPER/WASHER) SWITCH RESISTANCE - REAR WIPER FUNCTIONS
| FUNCTION | CAVITY | RESISTANCE | |
| 4 | 5 | ||
| Wash | X | X | 0 Ohms |
| Off | X | X | 1045 Ohms |
| Intermittent | X | X | 382 Ohms |
| Wiper | X | X | 174 Ohms |
| Wash0 Ohms | X | X | 0 Ohms |