Pinpoint Test

1. Ignition OFF.
2. Disconnect: LTM C4174B.
3. Place the liftgate in the fully unlatched position. REFER to LIFTGATE LATCH MANUAL RELEASE .
4. Measure:

   LTM			Ground
   C4174B			Ground
   Pin	Circuit	Measurement / Action	Pin	Circuit
   16	CPR66 (GY/BU)		-	Ground
   18	CPR64 (VT/OG)		-	Ground
   17	CPR65 (BU/GN)		-	Ground

5. Record the test results.
6. Place the liftgate in the primary latch position.
7. Measure:

   LTM			Ground
   C4174B			Ground
   Pin	Circuit	Measurement / Action	Pin	Circuit
   16	CPR66 (GY/BU)		-	Ground
   18	CPR64 (VT/OG)		-	Ground
   17	CPR65 (BU/GN)		-	Ground

8. NOTE: If the detent switch resistance measured is less than 5 ohms in the fully unlatched position, manually rotate the forkbolt to the latched position while measuring the resistance.

   Record the test results.

9. Compare the results with the table below.

   Liftgate Latch Position	Circuit	Resistance
   Fully Unlatched	CPR66 (GY/BU)	Greater than 10, 000 ohms
   Fully Unlatched	CPR64 (VT/OG)	Less than 5 ohms
   Fully Unlatched	CPR65 (BU/GN)	Less than 5 ohms
   Primary	CPR66 (GY/BU)	Less than 5 ohms
   Primary	CPR64 (VT/OG)	Greater than 10, 000 ohms
   Primary	CPR65 (BU/GN)	Greater than 10, 000 ohms

Do the resistance values agree with the table? 

1. Yes: GO to  5.
2. No: GO to 2  .

1. Disconnect: Power Liftgate Latch.
2. Measure:

   Power Liftgate Latch			Ground
   C4339			Ground
   Pin	Circuit	Measurement / Action	Pin	Circuit
   8	GD349 (BK/GY)		-	Ground

Is the resistance less than 3 ohms? 

1. Yes: GO to 3  .
2. No: REPAIR the circuit for an open.

1. Measure:

   LTM			Ground
   C4174B			Ground
   Pin	Circuit	Measurement / Action	Pin	Circuit
   18	CPR64 (VT/OG)		-	Ground
   17	CPR65 (BU/GN)		-	Ground
   16	CPR66 (GY/BU)		-	Ground

Is the resistance greater than 10, 000 ohms? 

1. Yes: GO to 4  .
2. No: REPAIR the circuit in question.

1. Measure:

   Power Liftgate Latch			LTM
   C4339			C4172B
   Pin	Circuit	Measurement / Action	Pin	Circuit
   1	CPR64 (VT/OG)		18	CPR64 (VT/OG)
   3	CPR65 (BU/GN)		17	CPR65 (BU/GN)
   2	CPR66 (GY/YE)		16	CPR66 (GY/BU)

Are the resistances less than 3 ohms? 

1. Yes: INSTALL a new power liftgate latch. REFER to LIFTGATE LATCH .
2. No: REPAIR the circuit in question.

1. Ignition OFF.
2. Disconnect and inspect all LTM connectors.
3. Repair:
   • corrosion (install new connector or terminals - clean module pins)
   • damaged or bent pins - install new terminals/pins
   • pushed-out pins - install new pins as necessary
4. Reconnect all the LTM connectors. Make sure they seat and latch correctly.
5. Operate the system and determine if the concern is still present.

Is the concern still present? 

1. Yes: CHECK OASIS  for any applicable TSBs  . If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs  address this concern, INSTALL a new LTM. REFER to Liftgate/Trunk Module (LTM) .
2. No: The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.