Operation CHARM: Car repair manuals for everyone.

V8 Vehicles Requiring A New PCM

1. Disconnect the battery.

2. Replace the Powertrain Control Module (PCM) with the correct part which can be found in the chart in Figure 1. Refer to Workshop Manual, Section 303-14 for additional information.

NOTE
A PARAMETER RESET MUST BE PERFORMED FOR THE PASSIVE ANTI-THEFT SYSTEM (PATS) TO OPERATE. FAILURE TO DO SO WILL RESULT IN A NO START CONDITION.

NOTE
DO NOT ERASE KEYS. IT MAY BE NECESSARY TO CYCLE THE KEY FROM OFF TO RUN 3 TIMES, EACH TIME LEAVING THE KEY IN THE RUN POSITION SO THE PATS MODULE WILL STORE THE NEW PCM ID.

3. Remove the engine appearance cover and the air induction tube. Refer to Workshop Manual, Section 303-12.

4. Install the IAC Jumper Harness, Part Number 2W4Z-14A411-CA, by using the following procedure:

a. Lift the Front Power Distribution Box (underhood) by disengaging three (3) retaining clips securing it to the vehicle (2 in rear - 1 in front). Gently lift and roll the box forward exposing the bottom cover.

b. Remove the bottom cover of the box by releasing the five (5) retaining clips located along the sides of the cover.

c. Position the box right side up and open the top cover. Remove the now exposed nut securing the electrical connection to the rear/inside of the box. Refer to Figure 2.

d. Route the eyelet end of the 2W4Z-14A411-CA Jumper Harness under the rear/inside section of the box and loop the eyelet over the electrical connection stud.

e. Install the retaining nut. Torque to 105 Lb-in (12 N.m).

f. Install the lower cover on the box. Carefully tuck all the wires behind the cover so they will not be pinched between the cover and the box.

g. Carefully route the Jumper Harness around the front of the box. Avoid sharp edges and any opportunity to pinch or trap the harness. Refer to Figure 3.

h. Install the box by sliding back over the brackets and engage the retaining clips.

i. Route the Jumper Harness parallel with the right inner fender. Secure the first Christmas Tree fastener in the vacant hole in the inner fender. Refer to Figure 4.

j. Remove the push pin fastener from far right side of the cowl leaf screen. Lift the right edge slightly and route the Jumper Harness into the engine compartment between the hood to cowl seal and the strut tower brace. Refer to Figure 5.

k. Secure the second Christmas Tree fastener into the vacant hole under the far right side of the cowl leaf screen. Reposition the cowl leaf screen and install the push pin fastener. Refer to Figure 6.





l. Secure the third Christmas Tree fastener into the vacant hole on top of the in-line electrical connector bracket located in the right rear of the engine compartment. Continue to route the Jumper Harness along the engine compartment wiring harness. Secure with a strip tie. Refer to Figure 8.





m. Secure the fourth Christmas Tree fastener to the vacant hole in the bracket attached to the right fuel rail. Refer to Figure 9.

n. Connect the Jumper Harness to the IAC and the original IAC connector/harness to the folded back connector on the Jumper Harness. Refer to Figure 9.

o. Install the air induction tube and the engine appearance cover.

p. Connect the battery. Check for and clear any Diagnostic Trouble Codes that may be stored in the PCM.