Test Description

WARNING: This page does not describe the selected car, but rather 31 other vehicles, including the 2002 Saturn Vue, 2002 Pontiac Montana, 2002 Pontiac Aztek, 2002 Oldsmobile Silhouette, and 2002 Oldsmobile Bravada. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to step numbers in diagnostic procedure.

4

This step determines if an open IGN E fuse is causing condition.

5

This step tests for a short to ground on ignition Voltage Supply circuit of fuel injector relay.

6

This step determines if one of the fuel injector relays is causing condition. If IGN E fuse opens when a fuel injector relay is installed, replace relay.

7

This step determines if AF fuel pump relay is causing condition. If IGN E fuse opens when AF fuel pump relay is installed, replace relay.

8

This step determines if AF ECM is causing condition. If IGN E fuse opens when harness connector of AF ECM is installed, replace AF ECM.

9

This step tests ignition voltage circuit of fuel injector relays.

10

This step tests battery voltage circuit of fuel injector relays.

11

This step tests battery voltage circuit of fuel injector relays for a short to ground. If test light illuminates, repair short to ground and replace fusible link.

12

This step tests battery voltage circuit of fuel injectors for a short to ground between fuel injector relay and fuel injectors. If test light illuminates, repair short to ground and replace fusible link.

14

This step tests fuel injector relays. If test light does not illuminate, inspect appropriate relay for proper terminal connections.