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

SHIFT INTERLOCK SYSTEM DOES NOT RELEASE/LOCK CORRECTLY - PINPOINT TEST REFERENCE

1		SHIFT INTERLOCK SYSTEM DOES NOT RELEASE/LOCK CORRECTLY
STEP	INSPECTION		ACTION
1	CHECK FOR CLUTCH PEDAL POSITION (CPP) JUMPER PLUG ON AUTOMATIC TRANSMISSION EQUIPPED VEHICLES Inspect CPP jumper 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 (V/R) FOR A SHORT TO GROUND Disconnect the brake pedal position (BPP) switch connector 0918-106. Measure the resistance between the BPP switch 0918-106 pin 3, circuit (V/R) and ground. Is the resistance greater than 10,000 ohms?	Yes	Go to next step.
4		No	REPAIR circuit (V/R) for a short to ground. TEST the system for normal operation.
5	TEST CIRCUIT (V/R) FOR AN OPEN Measure the resistance between the output side of fuse F2.32 (5A) and the BPP switch 0918-106 pin 3, circuit (V/R). Is resistance less than 5 ohms?	Yes	Go to next step.
5		No	REPAIR circuit (V/R) 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 between pin 2 and pin 3 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 (BR/G) FOR A SHORT TO GROUND Disconnect the brake shift interlock connector 0518-01. Measure the resistance between the brake shift interlock 0518-01 pin 3, circuit (BR/G) and ground. Is the resistance greater than 10,000 ohms?	Yes	Go to next step.
7		No	REPAIR circuit (BR/G) for a short to ground. TEST the system for normal operation.
8	TEST CIRCUIT (BR/G) FOR AN OPEN Measure the resistance between brake shift interlock 0518-01 pin 3, circuit (BR/G) and the brake pedal position (BPP) switch 0918-106 pin 4, circuit (BR/G). Is the resistance less than 5 ohms?	Yes	Go to next step.
8		No	REPAIR circuit (BR/G) for an open. TEST the system for normal operation.
9	TEST FOR VOLTAGE ON CIRCUIT (Y/V) Key on, engine off (KOEO) Measure the voltage between the brake shift interlock 0518-01 pin 1, circuit (Y/V) and ground. 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 (Y/V) FOR A SHORT TO GROUND Measure the resistance between the brake shift interlock 0518-01 pin 1, circuit (Y/V) and ground. 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 (Y/V) FOR AN OPEN Measure the resistance between the output side of fuse F2.20 (10A) and the brake shift interlock 0918-106 pin 1, circuit (Y/V). Is the resistance less than 5 ohms?	Yes	Go to next step.
12		No	REPAIR circuit (Y/V) for an open. TEST the system for normal operation.
13	TEST CIRCUIT (B/Y) FOR AN OPEN Measure the resistance between the brake shift interlock 0918-106 pin 2, circuit (B/Y) and ground. Is the resistance less than 5 ohms?	Yes	INSTALL a new brake shift interlock. TEST the system for normal operation.
13		No	REPAIR circuit (B/Y) for an open. TEST the system for normal operation.