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Selector Check

  1. Turn ignition off. Disconnect control unit connector. Using an ohmmeter, measure resistance between control unit terminals No. 3 and 11, or between selector connector terminals No. 1 and 2 with switch in specified position. See CHECKING ON & OFF FUNCTION table. See Figure .
  2. To check resume function of switch, use an ohmmeter and measure resistance between control unit terminals No. 4 and 11 or between selector connector terminals No. 3 and 2 with switch in specified position. See CHECKING RESUME FUNCTION table. See Figure .
  3. To check set function of switch, use an ohmmeter to measure resistance between control unit terminals No. 6 and 11 or between selector connector terminals No. 4 and 2 with switch in specified position. See CHECKING SET FUNCTION table. See Figure .
  4. To check other switch functions, measure resistance between control unit terminals No. 3 and 4 or selector connector terminals No. 1 and 3 with switch in specified position. See CHECKING OTHER FUNCTIONS table (Step 1). See Figure .
  5. Using an ohmmeter, measure resistance between control unit terminals No. 3 and 6 or between selector terminals No. 1 and 4 with switch in specified position. See CHECKING OTHER FUNCTIONS table (Step 2). See Figure .
  6. Using an ohmmeter, measure resistance between control unit terminals No. 4 and 6 or between selector terminals No. 3 and 4 with switch in specified position. See CHECKING OTHER FUNCTIONS table (Step 3). See Figure .
  7. If all measurements are okay, selector switch and wiring are okay. If any resistance measurements are not to specification, check wiring and connections for an open or short circuit.
CHECKING ON & OFF FUNCTION

Switch Position Ohms
OFF
SET Button Out Infinite
SET Button In Infinite
ON
SET Button Out (1) Zero
SET Button In (1) Zero
RESUME
SET Button Out (1) Zero
SET Button In (1) Zero
Brake Pedal Depressed
SET Button Out Infinite
SET Button In Infinite
(1) This specification is approximate.
CHECKING RESUME FUNCTION

Switch Position Ohms
OFF
SET Button Out Infinite
SET Button In Infinite
ON
SET Button Out Infinite
SET Button In (1) Zero
RESUME
SET Button Out Infinite
SET Button In (1) Zero
(1) This specification is approximate.
CHECKING SET FUNCTION

Switch Position Ohms
OFF
SET Button Out Infinite
SET Button In Infinite
ON
SET Button Out Infinite
SET Button In (1) Zero
RESUME
SET Button Out Infinite
SET Button In (1) Zero
(1) This specification is approximate.
CHECKING OTHER FUNCTIONS

Switch Position Ohms
Step 1
OFF
SET Button Out Infinite
SET Button In Infinite
ON
SET Button Out Infinite
SET Button In Infinite
RESUME
SET Button Out (1) Zero
SET Button In (1) Zero
Step 2
OFF
SET Button Out Infinite
SET Button In (1) Zero
ON
SET Button Out Infinite
SET Button In (1) Zero
RESUME
SET Button Out (1) Zero
SET Button In (1) Zero
Step 3
OFF
SET Button Out Infinite
SET Button In Infinite
ON
SET Button Out Infinite
SET Button In Infinite
RESUME
SET Button Out Infinite
SET Button In (1) Zero
(1) This specification is approximate.
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