Glow Plug System Check

1. Disconnect all Glow Plugs.

2. Use J39200 to measure continuity between each Glow Plug terminal and ground.

3. Replace any burned out glow plugs as necessary.

4. Reconnect all Glow Plugs.

5. With test light connected to ground, probe each Glow Plug harness terminal connector.

6. Command Glow Plugs "ON". Is test light "ON".

7. If test light "ON". system is operating correctly.