Diagnosis And Testing - Right Multi-Function Switch

The right multi-function switch as well as the hard wired inputs and outputs of the switch may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the Steering Control Module (SCM) or the electronic controls or communication between other modules and devices that provide some features of the front and rear wiper and washer systems. The most reliable, efficient and accurate means to diagnose the SCM or the electronic controls and communication related to SCM operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.

Fig 1: Right Multi-Function Switch Connector

Courtesy of CHRYSLER GROUP, LLC

1. Remove the right multi-function switch from the integral mounting bracket on the right side of the clockspring. Refer to SWITCH, MULTIFUNCTION, RIGHT, REMOVAL .
2. Using an ohmmeter, test the resistance between the terminals of the switch as shown in the tables. Refer to CONTROL STALK FUNCTION TEST  and CONTROL KNOB FUNCTION TEST . For all functions except those of the control stalk the values should be either less than 100 ohms (switch CLOSED) or greater than 1 megohm (switch OPEN).
3. If the switch fails any of the tests, replace the ineffective right multi-function switch as required. If the switch tests okay, but the switch input to the Steering Control Module (SCM) remains incorrect, be certain to check for a short or open in the jumper harness between the right multi-function switch and the SCM.