Automatic Transmission External Controls Pinpoint Test 1: Shift Interlock System Does Not Release / Lock Properly

AUTOMATIC TRANSMISSION EXTERNAL CONTROLS PINPOINT TEST 1 CHART - SHIFT INTERLOCK SYSTEM DOES NOT RELEASE / LOCK PROPERLY

1		TORQUE CONVERTER CLUTCH CONCERNS: CYCLING / SHUDDER / CHATTER
STEP	INSPECTION		ACTION
1	CHECK FOR CLUTCH PEDAL POSITION (CPP) JUMPER PLUG ON AUTOMATIC TRANSMISSION EQUIPPED VEHICLES Inspect CPP jumber plug for correct installation. Is the CPP jumper plug correctly installed?	Yes	Go to next step.
1		No	Install the CPP jumper plug. Test the system for normal operation.
2	TEST THE BRAKE LIGHTS Apply the brake pedal and view the brake lights. Do the brake lights illuminate?	Yes	Go to step 8.
2		No	Go to next step.
3	TEST F2.32 (5A) Key OFF. Check fuse: F2.32 (5A) Is the resistance less than 5 ohms?	Yes	Go to step 5.
3		No	Go to next step.
4	TEST CIRCUIT (BR) FOR A SHORT TO GROUND Disconnect the prake pedal position (BPP) switch. Measure the resistance of circuit (BR) at BPP switch. Is the resistance greater than 10,000 ohms?	Yes	Go to next step.
4		No	REPAIR circuit (BR) for a short to ground. TEST the system for normal operation.
5	TEST CIRCUIT (BR) FOR AN OPEN Measure the resistance between the output side of fuse F2.32 (5A) and the brake ON/OFF switch, circuit (BR). Is resistance less than 5 ohms?	Yes	Go to next step.
5		No	REPAIR circuit (BR) for an open. TEST the system for normal operation.
6	TEST THE BRAKE PEDAL POSITION (BPP) SWITCH Measure the resistance of the brake pedal position (BPP) switch while open (OFF) and closed (ON). Is the resistance less than 5 ohms with the BPP switch in the ON position and greater than 10,000 ohms with the BPP switch in the OFF position?	Yes	Go to next step.
6		No	INSTALL a new BPP switch. TEST the system for normal operation.
7	TEST CIRCUIT (R/LG) FOR A SHORT TO GROUND Disconnect the shift lock actuator. Measure the resistance between the shift lock actuator circuit (R/LG), harness side and ground. Is the resistance greater than 10,000 ohms?	Yes	Go to next step.
7		No	REPAIR circuit (R/LG) for a short to ground. TEST the system for normal operation.
8	TEST CIRCUIT (R/LG) FOR AN OPEN Measure the resistance of circuit (R/LG) between shift lock actuator and the brake pedal position (BPP) switch. Is the resistance less than 5 ohms?	Yes	Go to next step.
8		No	REPAIR circuit (R/LG) for an open. TEST the system for normal operation.
9	TEST FOR VOLTAGE ON CIRCUIT (R) Key on, engine off (KOEO) Measure the voltage at shift lock actuator, circuit (R). Is voltage greater than 10 volts?	Yes	Go to step 13.
9		No	Go to next step.
10	TEST FUSE F2.20 (10A) Key in start position. Check fuse: F2.20 (10A) Is the resistance of the fuse less than 5 ohms?	Yes	Go to step 12.
10		No	Go to next step.
11	TEST CIRCUIT (R) FOR A SHORT TO GROUND Measure the resistance at shift lock actuator, circuit (R). Is the resistance greater than 10,000 ohms?	Yes	Go to next step.
11		No	REPAIR the circuit for a short to ground. TEST the system for normal operation.
12	TEST CIRCUIT (R) FOR AN OPEN Measure the resistance of circuit (R) between the output side of fuse F2.20 (10A) and the shift lock actuator. Is the resistance less than 5 ohms?	Yes	Go to next step.
12		No	REPAIR circuit (R) for an open. TEST the system for normal operation.
13	TEST CIRCUIT (B) FOR AN OPEN Measure the resistance of shift lock actuator, circuit (B). Is the resistance less than 5 ohms?	Yes	INSTALL a new shift lock actuator. TEST the system for normal operation.
13		No	REPAIR circuit (B) for an open. TEST the system for normal operation.