Pinpoint Test

1. Ignition OFF.
2. Disconnect: A/C  Clutch Relay.
3. Ignition ON.
4. Measure:

   BJB			Ground
   A/C  Clutch Relay Socket			Ground
   Pin	Circuit	Measurement / Action	Pin	Circuit
   2	CBK03 (GY)		-	Ground

Is the voltage greater than 11 volts? 

• Yes: GO to 2  .
• No: VERIFY BJB fuse 70 (10A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the appropriate wiring diagrams to identify the possible causes of the circuit short. REFER to OEM FUSE AND RELAY INFORMATION and OEM WIRING DIAGRAMS .

1. Carry out the Relay - Ultra Micro ISO component test on the A/C  clutch relay.

   Refer to the OEM Wiring Diagrams - COMPONENT TESTING .

Did the relay pass the component test? 

• Yes: GO to 3  .
• No: INSTALL a new A/C  clutch relay.

1. Ignition OFF.
2. Disconnect: PCM C175B (3.5L) or C1381B (2.0L).
3. Ignition ON.
4. 3.5L engine, measure:

   PCM			Ground
   C175B			Ground
   Pin	Circuit	Measurement / Action	Pin	Circuit
   12	CH302 (WH/BN)		-	Ground

5. 2.0L engine, measure:

   PCM			Ground
   C1381B			Ground
   Pin	Circuit	Measurement / Action	Pin	Circuit
   10	CH302 (WH/BN)		-	Ground

Is any voltage present? 

• Yes: REPAIR the circuit.
• No: GO to 4  .

1. Ignition OFF.
2. 3.5L engine, measure:

   PCM			Ground
   C175B			Ground
   Pin	Circuit	Measurement / Action	Pin	Circuit
   12	CH302 (WH/BN)		-	Ground

3. 2.0L engine, measure:

   PCM			Ground
   C1381B			Ground
   Pin	Circuit	Measurement / Action	Pin	Circuit
   10	CH302 (WH/BN)		-	Ground

Is the resistance greater than 10, 000 ohms? 

• Yes: GO to 5  .
• No: REPAIR the circuit.

1. 3.5L engine, measure:

   BJB			PCM
   A/C  Clutch Relay Socket			C175B
   Pin	Circuit	Measurement / Action	Pin	Circuit
   1	CH302 (WH/BN)		12	CH302 (WH/BN)

2. 2.0L engine, measure:

   BJB			PCM
   A/C  Clutch Relay Socket			C1381B
   Pin	Circuit	Measurement / Action	Pin	Circuit
   1	CH302 (WH/BN)		10	CH302 (WH/BN)

Is the resistance less than 3 ohms? 

• Yes: GO to 6  .
• No: REPAIR the circuit.

1. Ignition OFF.
2. Disconnect and inspect all PCM 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 the PCM 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? 

• 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 PCM:

  REFER to POWERTRAIN CONTROL MODULE (PCM) - 2.0L GTDI , or

  REFER to POWERTRAIN CONTROL MODULE (PCM) - 3.5L TI-VCT .

• 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.