P1389 Diagnostic Trouble Code Discussion for January 2026
No Auto Shutdown Relay Output Voltage To PCM
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| Help Request | Posted | |
| 1999 Jeep Grand Cherokee Laredo 4.7L No Start VIN: 1J4GW58N2X P1389: No Auto Shutdown Relay Output Voltage To PCM. customer states driving home check engine light came on. drove fine on way home. after shutting engine off it will not restart unless you spray fuel into throttle body, then runs fine until you shut it off, there is no injector pulse when cranking. there i... |
January 29, 2026 |
