Engine Harness - Electrical Short/No Start/Driveability

BULLETIN NUMBER:
SB97-01-L007

ISSUE DATE:
SEPTEMBER 1997

GROUP:
ENGINE

1998 RODEO (UE) 3.2L V6 ENGINE HARNESS INSPECTION

AFFECTED VEHICLES


































1998 Rodeo (UE) models equipped with 3.2L V6 engine. (See VIN list)

SERVICE INFORMATION

Some affected vehicles may experience an electrical short in the engine harness. If shorting occurs, the vehicle may not start or driveability may be affected.

This short may be caused by interference between the crankshaft position sensor wire splice and the adjacent braided shield wire.

To prevent this condition from occuring, modify the engine harness using the procedure described in this Service Bulletin.

SERVICE PROCEDURE

NOTE
Some affected vehicles may already have this modification trade to the engine harness. Before proceeding with this procedure, inspect the engine harness plastic sheath on the driver side near the power steering reservoir and the brake master cylinder reservoir.





^ If the engine harness has a silver or white slash mark on the outside of its plastic sheath, stop here; the engine harness has been previously modified and no further action is require (Figure 12).

^ If no silver or white slash mark is present, modify the engine harness in accordance with the steps below.

REMOVAL

Engine Harness

^ Record any radio station presets; then, disconnect battery ground cable.





^ Disconnect brown 2-pin ABS sensor harness connector located above left front upper control arm (Figure 1).





^ Squeeze two clips on bottom of power steering reservoir and slide reservoir up to remove it from bracket (Figure 2).

NOTE
Disconnecting the ABS sensor harness connector and removing the power steering reservoir from its bracket will give easier access to the engine harness portion requiring this modification.





^ Release two white clips securing engine harness to driver side inner front fender well (Figure 3).





^ Grasp green (middle) 16-pin connector mounted to base of power steering reservoir bracket. Slide green connector toward engine to release green connector from its mounting bracket (Figure 4).

^ Disconnect green connector halves.





^ Cut open engine harness vinyl sheath to green connector along entire length of sheath to expose wire bundle (Figure 5).





^ Locate two brown/silver dot wires in wire bundle and follow wires back to splice area (Figure 6).

NOTE
The two brown/silver dot wires are the 5-volt reference for the crankshaft position sensor. These wires connect to the green 16-pin connector on the engine harness.





^ Pull braided shield wire away from splice area and cut braided shield wire back to 1/2 inch (Figure 7).

INSTALLATION

Engine Harness





^ Wrap electrical tape separately around splice area (Figure 8).





^ Pull 1/2-inch piece of braided shield wire back so that it lays flat against harness. Wrap electrical tape separately around braided shield wire and harness (Figure 9).





^ Wrap electrical tape over both wrapped splice area and wrapped braided shield wire (Figure 10).





^ Place engine harness vinyl sheath over wrapped splice area and braided shield wire. Wrap vinyl sheath closed using electrical tape (Figure 11).

^ Reconnect green connector halves. Reinstall green connector onto mounting bracket.

^ Reinstall two white clips to secure engine harness to driver side inner front fender well.

^ Reinstall power steering reservoir to bracket.

^ Reconnect ABS sensor harness connector.

^ Reconnect battery ground cable.

^ Reset radio station presets.

When all repairs have been completed, start the engine and check for proper engine operation.

Be sure the ABS indicator light comes on, then goes off after 10 seconds. If the ABS indicator light stays on, check the left front ABS sensor harness connector. If the ABS indicator light remains on after checking the ABS sensor harness connector, refer to the Workshop Manual for proper diagnosis.





Mark the outside of the engine harness plastic sheath between the two white harness clips with a white slash mark to denote the engine harness has been repaired (Figure 12).

Use the following new labor operation:





If there are any questions, contact your regional office.