Expedition 4WD V8-5.4L VIN 5 (2006)
8.
Verify the TED is plugged in. (C3034 - Driver Back, C3035 - Driver Cushion, C3039 - Passenger Back, or C3040 - Passenger Cushion)
a.
If plugged in, then proceed to Step 9.
b.
If not plugged in, then correct and proceed to Step 12.
9.
Is the thermistor circuit in the TED open? (Check the connector (C3034 - Driver Back C3035 - Driver Cushion, C3039 - Passenger Back, or
C3040 - Passenger Cushion, C3265A - DCCSM). (Figure 2)
a.
If it is open, then proceed to Step 10.
b.
If it is not open, then proceed to Step 11.
10.
Verify the wire harnesses to the thermistor are good (looking for shorts or opens in the harnesses).
a.
If the wire harnesses to the thermistor are not good, then repair as needed and proceed to Step 12.
b.
If the wire harnesses are good, then proceed to Step 11.
11.
Is the resistance on the thermistor circuit at the TED Connector (C3034 - Driver Back, C3035 - Driver Cushion, C3039 - Passenger Back, or
C3040 - Passenger Cushion) (between 2.7 K ohms (proper value at 65° F) (18° C) to 1.86 K ohms (proper value at 80° F) (27° C) at ambient
(room temperature)?
a.
No, then replace the TED that is outside the resistance range specified above, assuming the TED is at room temperature, and proceed to
Step 12.
b.
Yes, then replace the DCCSM and proceed to Step 12.
12.
If CCS continues to be inoperable with a B272C/D code, start a new diagnosis from Step 3 in Section 1, otherwise repower the SRS and finish
other repairs as needed and return vehicle to customer.
Section 3
SECTION 3 (Seat Shuts Off Less Than 40 Seconds, But More Than 5 Seconds)
1.
Follow the spread terminal fix procedure listed in Section 5. If this has already been performed and in Step 3 in Section 1 has lead you back to this
procedure, proceed to Step 2.
2.
If CCS continues to be inoperable with a B272C/D code, determine if an over-temp DTC is present (B2729, B2730, B272A, B272B).
a.
If there is an over-temp DTC present, then continue to Step 3.
b.
If there is no over-temp DTC present, then continue to Step 5.
