What does diagnostic code 1389 mean?

Question

What does diagnostic code 1389

Answer 1

Hi there,

The code is for no output voltage to the asd relay from the pcm. Here is a list of possible causes.

• Fused B(+) circuit open
• ASD relay defective
• ASD relay output circuit wiring harness observable defect
• ASD relay output circuit open (engine started)
• ASD relay output circuit open (engine did not start)
• ASD relay output circuit wiring harness intermittent defect
• PCM defective (engine did not start)
• PCM defective (engine started)