Pinpoint Test F - Memory Seat Does Not Work Properly
- Voltage Supply To Power Seat Memory Module Check: Using a test light, check Black/White wire for voltage at memory module connector. If test light comes on, go to next step. If test light does not come on, repair open in Black/White wire. Retest system.
- Ignition Input At Memory Module Check: Turn ignition to start. Using test light, check White/Purple wire for voltage at memory module connector. If test light comes on, go to next step. If test light does not come on, repair open in White/Purple wire. Retest system.
- Memory Module Ground Circuit Check: Using an ohmmeter, check resistance between Black wire at memory module connector and ground. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire. Retest system.
- Input Circuit Test (White/Orange Wire): Using a DVOM, backprobe White/Orange wire at memory module connector. Press memory seat switch. If voltage is 10 volts or more, go to next step. If voltage is less than 10 volts, repair open in White/Orange wire. Retest system.
- Memory Switch To Memory Module Input Test: Using a DVOM, backprobe Brown/Light Green wire at memory module connector. Press set button at memory seat switch. Within 5 seconds, press button No. 1 and read voltage. If less than 10 volts exists, go to next step. If 10 volts or more exists, replace power seat motor. Retest system.
- Memory Switch Input Circuit Check: Turn ignition off. Unplug memory module connector. Check resistance of Brown/Light Green wire between memory switch connector and memory module connector. Check resistance of Black/Orange wire between memory switch connector and memory module connector. If resistance in both wires is 5 ohms or less, replace memory switch. If resistance in either or both wire(s) is greater than 5 ohms, repair open in suspect circuit. Retest system.