Pinpoint Test

NOTE: When taking measurements at DCSM harness connectors, do not insert the electrical probes into the female connector pins. Inserting the probes into connector pins can cause intermittent or open electrical connections after reassembly resulting in DTCs and system failure. Touching the tip of these connector pins is recommended instead.

CHECK THE PASSENGER CUSHION TED BLOWER SPEED CONTROL CIRCUIT FOR A SHORT TO VOLTAGE

WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.

Ignition OFF.
Disconnect: Passenger Seat Side Air Bag C339.
Disconnect: DCSM C3265C.
Ignition ON.

Measure:

DCSM			Ground

C3265C			Ground
Pin	Circuit	Measurement / Action	Pin	Circuit
3	VHS23 (BN/BU)		-	Ground

Is any voltage present?

Yes: GO to 2 .
No: GO to 3 .

CHECK THE PASSENGER CUSHION TED BLOWER SPEED CONTROL CIRCUIT FOR A SHORT TO VOLTAGE

Disconnect: Passenger Cushion TED C3040.

Measure:

DCSM			Ground

C3265C			Ground
Pin	Circuit	Measurement / Action	Pin	Circuit
3	VHS23 (BN/BU)		-	Ground

Is any voltage present?

Yes: REPAIR the circuit. GO to 6 .
No: GO to 3 .

CHECK THE PASSENGER CUSHION TED BLOWER SPEED CONTROL AND BLOWER OUTPUT CIRCUITS FOR A SHORT TOGETHER

Ignition OFF.
Disconnect: Passenger Cushion TED C3040.

Measure:

DCSM			DCSM

C3265C			C3265C
Pin	Circuit	Measurement / Action	Pin	Circuit
3	VHS23 (BN/BU)		8	CHS08 (BN/YE)

Is the resistance greater than 10, 000 ohms?

Yes: GO to 4 .
No: REPAIR the circuits. GO to 6 .

CHECK THE PASSENGER CUSHION TED RESISTANCE FOR AN INTERNAL SHORT

Measure:

Passenger Cushion TED			Passenger Cushion TED

C3040 Component Side			C3040 Component Side
Pin	Circuit	Measurement / Action	Pin	Circuit
2	-		7	-

Is the resistance greater than 2, 000, 000 ohms?

Yes: GO to 5 .
No: INSTALL a new seat cushion TED. REFER to Seat Cushion Thermo-Electric Device (TED) . GO to 6.

CHECK FOR CORRECT DCSM OPERATION
1. Ignition OFF.
2. Disconnect and inspect all DCSM connectors.
3. Repair:
  - corrosion (install new connector or terminals - clean module pins)
  - damaged or bent pins - install new terminals/pins as necessary
  - pushed-out pins - install new pins as necessary
4. Reconnect the DCSM connectors. Make sure they seat and latch correctly.
5. Connect: Passenger Cushion TED C3040.
6. 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 DCSM. REFER to Dual Climate Controlled Seat Module (DCSM) . GO to 6 .
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. GO to 6 .
CHECK FOR SRS DTCs
1. WARNING: Turn the ignition OFF and wait one minute to deplete the backup power supply. Failure to follow this instruction may result in serious personal injury or death in the event of an accidental deployment.
  
  Ignition OFF.
2. Connect: Passenger Seat Side Air Bag C339.
3. Connect: DCSM C3265C (if previously disconnected).
4. Connect: Passenger Cushion TED C3040 (if previously disconnected).
5. Ignition ON.
6. Using a scan tool, clear the RCM DTCs .
7. Cycle the ignition OFF then ON.
8. Using a scan tool, perform RCM self-test.
Are any RCM DTCs retrieved during self-test?
1. Yes: REFER to DTC CHART: RESTRAINT CONTROL MODULE (RCM) for pinpoint test direction.
2. No: The repair is complete. RETURN the vehicle to the customer.