Test Description

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

1: The Diagnostic System Check-Engine Controls prompts the technician to complete some basic checks and store the Freeze Frame data on the scan tool if applicable. This creates an electronic copy of the data taken when the fault occurred. The information is then stored in the scan tool for later reference.
6: This step will verify the ground path for the EFI relay circuit.

Ignition Relay Diagnosis

Step	Action	Yes	No
Schematic Reference: Engine Controls Schematics
1	Did you perform the Diagnostic System Check-Engine Controls?	Go to Step 2	Go to Diagnostic System Check - Engine Controls
2	Check for an open in the following fuses: The AM2 fuse The EFI fuse Was an open fuse found?	Go to Step 10	Go to Step 3
3	Turn ON the ignition, leaving the engine OFF. Remove and reinstall the EFI relay several times while listening and feeling for a click from the relay. Did the EFI relay click when being reinstalled into the relay box?	Go to Step 4	Go to Step 5
4	Turn OFF the ignition. Remove the EFI relay from the relay block. Turn ON the ignition, leaving the engine OFF. Probe the relay block side of terminal 5 using a test lamp connected to ground. Refer to Power and Grounding Component Views in Wiring Systems and the Relay Cavity Identification table in Diagnostic Aids. Does the test lamp illuminate?	Go to Step 11	Go to Step 7
5	Probe terminal 1 of the EFI relay on the relay block side using a test lamp connected to ground. Does the test lamp illuminate?	Go to Step 6	Go to Step 9
6	Turn OFF the ignition. Probe terminal 2 of the EFI relay on the fuse block side using a test lamp connected to B+. Observe the test lamp. Does the test lamp illuminate?	Go to Step 12	Go to Step 8
7	Repair the open or poor connection in the battery positive voltage circuit between the EFI fuse and the EFI relay. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you complete the repair?	Go to Step 13	-
8	Repair the open or poor connection in the EFI relay coil ground circuit between the EFI relay and G103. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you complete the repair?	Go to Step 13	-
9	Repair the open or poor connection in the battery positive voltage circuit between the AM2 fuse and the EFI relay. Refer to Testing for Intermittent Conditions and Poor Connections and Wiring Repairs in Wiring Systems. Did you complete the repair?	Go to Step 13	-
10	Repair the short to ground in the AM2 fuse circuit or the EFI fuse circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair?	Go to Step 13	-
11	Inspect the EFI relay circuit for an open or a poor connection, from terminal 3 to the component or system that is not receiving voltage. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. Repair as necessary. Refer to Wiring Repairs in Wiring Systems. Did you find and correct a wiring fault?	Go to Step 13	Go to Step 12
12	Replace the EFI relay. Did you complete the replacement?	Go to Step 13	-
13	Operate the vehicle within the conditions under which the original concern was noted. Does the system operate properly with no DTCs?	System OK	Go to Diagnostic System Check - Engine Controls