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Pinpoint Test 8: Flash Code 4 - Clutch/Neutral Switch Circuit Failure

PINPOINT TEST 8: FLASH CODE 4 - CLUTCH/NEUTRAL SWITCH CIRCUIT FAILURE

PINPOINT TEST 8 FLASH CODE 4 - CLUTCH/NEUTRAL SWITCH CIRCUIT FAILURE
STEP INSPECTION ACTION
1 VERIFY FLASH CODE 4
Key OFF.
Disconnect the speed control actuator 0120-101.
Key ON.
Apply the clutch.
Measure the resistance between the cruise control actuator 0120-101 pin 2, circuit (LB/Y), harness side and ground.
Is the resistance less than 5 ohms? 
Yes INSTALL a new cruise control actuator.
See SPEED CONTROL ACTUATOR . TEST the system for normal operation.
No If automatic transaxle, GO to the next step.
If manual transaxle, GO to step 4.
2 CHECK THE TRANSMISSION RANGE (TR) SENSOR
Fully apply the parking brake.
Key OFF.
Disconnect the TR sensor 0119-03
Position the gearshift selector in NEUTRAL.
Measure the resistance between the TR sensor 0119-03 pin 9, component side and the TR sensor 0119-03 pin 4, component side.
Is the resistance less than 5 ohms? 
Yes GO to the next step.
No INSTALL a new TR sensor. See TRANSAXLE RANGE (TR) SENSOR . REPEAT the self-test.
3 CHECK THE TR SENSOR GROUND CIRCUIT
Place the gearshift selector in PARK.
Measure the resistance between the TR sensor 0119-03 pin 1, circuit (B), harness side and ground.
Is the resistance less than 5 ohms? 
Yes REPAIR circuit (LB/Y). REPEAT the self-test.
No REPAIR circuit (B). REPEAT the self-test.
4 CHECK THE CLUTCH PEDAL POSITION (CPP) SWITCH
Fully apply the parking brake.
Key OFF.
Disconnect the CPP Switch 0120-103
Measure the resistance between the CPP switch 0120-103 pin 2, component side and the CPP switch 0120-103 pin 4, component side while applying the clutch pedal.
Is the resistance less than 5 ohms? 
Yes GO to the next step.
No INSTALL a new CPP switch. See EXTERNAL CONTROLS . REPEAT the self-test.
5 CHECK CIRCUIT (LB/Y) FOR AN OPEN
Measure the resistance between the cruise control actuator 0120-101 pin 2, circuit (LB/Y), harness side and the CPP switch 0120-103 pin 4, circuit (LB/Y), harness side.
Is the resistance less than 5 ohms? 
Yes GO to the next step.
No REPAIR the circuit. REPEAT the self-test.
6 CHECK CIRCUIT (GY/R) FOR AN OPEN
Disconnect the PCM 0140-175b/275b
Measure the resistance between the CPP switch 0120-103 pin 2, circuit (GY/R), harness side and the PCM 0140-175b/275b pin 41, circuit (GY/R), harness side.
Is the resistance less than 5 ohms? 
Yes GO to the next step.
No REPAIR the circuit. TEST the system for normal operation.
7 CHECK FOR CORRECT PCM MODULE OPERATION
Disconnect the PCM connectors.
Check for:
  • corrosion
  • pushed-out pins

Connect the PCM connectors and make sure they seat correctly.
Operate the system and verify the concern is still present.
Is the concern still present? 
Yes INSTALL a new PCM. See POWERTRAIN CONTROL MODULE (PCM) .
TEST the system for normal operation.
No The system is operating correctly at this time.
The concern may have been caused by a loose or corroded connector.
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G03723767