# Service bulletin SB18N001A

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10162991
- Published by NHTSA: 2019\-07\-22
- Manufacturer's number: SB18N001A
- Manufacturer's date: 2019\-05\-01
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

SOME CUSTOMERS MAY COMPLAIN OF AN ILLUMINATED CHECK ENGINE MALFUNCTION INDICATOR LIGHT \(MIL\) ASSOCIATED WITH DIAGNOSTIC TROUBLE CODE \(DTC\) U0106, LOST COMMUNICATION WITH GLOW PLUG CONTROL MODULE \(GPCM\). THIS CONDITION MAY BE THE RESULT OF WATER INTRUSION INTO THE GPCM CONNECTOR. WATER FROM RAIN AND OTHER OUTSIDE SOURCES CAN POOL IN THE GLOW PLUG RECESSED AREA ON THE OUTSIDE OF THE CYLINDER HEAD. IF ENOUGH WATER ACCUMULATES, IT CAN SEEP INTO THE GLOW PLUG HARNESS THROUGH THE TERMINAL ENDS AND ENTER THE GPCM CONNECTOR, CAUSING THIS DTC TO SET. IF THIS DTC IS FOUND AND EVIDENCE OF WATER IS PRESENT IN THE GPCM CONNECTOR, REPLACE THE GLOW PLUG HARNESS TERMINALS AND REAR PANEL COVER AS OUTLINED IN THE SERVICE PROCEDURE IN THIS BULLETIN. THE REPLACEMENT TERMINAL ENDS ARE SEALED SO THAT WATER CANNOT GET INOT AND THROUGH THE WIRE.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10162991-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10162991-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Trouble codes named

U0106

## Vehicles listed

- 2011 to 2018 ISUZU N\-SERIES

JSON: [/v1/bulletins/10162991](/v1/bulletins/10162991)

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