Component Tests and General Diagnostics

PARK/NEUTRAL POSITION SWITCH (Back-up switch) (Auto Trans only)
1. Check switch resistance.

Switch resistance: OPEN when PRNDL not in Reverse. Less than one ohm when PRNDL in Reverse.
2. Repair/replace as needed.

If this component is good, go to the next item indicated on the chart.

BACK UP SWITCH (Manual Trans only)
1. Check switch resistance.

Switch resistance: OPEN when transmission not in Reverse. Less than one ohm when transmission in Reverse
2. Repair/replace as needed.

If this component is good, go to the next item indicated on the chart.

BULB SOCKET
1. Check voltage through the bulb socket.
2. Check for damaged or corroded terminals or connectors. Check terminals for tightness.
3. Repair/replace as needed.

If this component is good, go to the next item indicated on the chart.