Power Relay Test

Power Relay Test

Special Tools Required

- Relay puller 07AAC-000A1A0
Use this chart to identify the type of relay, then do the test listed for it.





NOTE:

- The following relays are part of the relay control module: PGM-FI main relay 1, ignition coil relay, PGM-FI subrelay and ETCS relay. To test these relays, go to relay control module test.

- Carefully remove the relay from the under-dash fuse/relay box using the relay puller. Do not use pliers. Pliers will damage the relay.





Normally-open Type

Check for continuity between the terminals.

- There should be continuity between the terminals No. 1 and No. 2 when battery positive terminal is connected to the terminal No. 4, and battery negative terminal is connected to the terminal No. 3.

- There should be no continuity between the terminals No. 1 and No. 2 when power is disconnected.









Five-terminal Type

Check for continuity between the terminals.

- There should be continuity between the terminals No. 1 and No. 2 when battery positive terminal is connected to the terminal No. 5, and battery negative terminal is connected to the terminal No. 3.

- There should be continuity between the terminals No. 1 and No. 4 when power is disconnected.









Relay Control Module Test

The relay control module is part of the under-hood fuse/relay box, and it contains these relays:

- PGM-FI main relay 1

- Ignition coil relay

- PGM-FI subrelay

- ETCS relay

If any of these relays fail the test, replace the under-hood fuse/relay box.

1. Do the battery terminal disconnection procedure, Procedures then disconnect under-hood fuse/relay box connectors C (2P), E (14P), and H (9P).

2. Connect battery power to the C2 terminal.
PGM-FI main relay 1:

- Connect the E5 terminal to body ground. There should be battery voltage between the H1 terminal and body ground.

- Disconnect the E5 terminal from the body ground. There should be no voltage between the H1 terminal and the body ground.

Ignition coil relay:
- Connect the E5 terminal to body ground. There should be battery voltage between the H6 terminal and body ground.

- Disconnect the E5 terminal from the body ground. There should be no voltage between the H6 terminal and the body ground.

PGM-FI subrelay
- Connect the E5 and E13 terminals to body ground. There should be battery voltage between the H9 terminal and body ground.

- Disconnect the E5 terminal from the body ground. There should be no voltage between the H9 terminal and the body ground.

ETCS relay:
- Connect the E5 and E14 terminals to body ground. There should be battery voltage between the H7 terminal and body ground.

- Disconnect the E5 terminal from the body ground. There should be no voltage between the H7 terminal and the body ground.