PowertrainP0683

Serious

Severity: Serious - have it checked soon

Glow Plug Control Module 1 to PCM Communication Circuit

30 brands affected · Generic SAE J2012 description.

Key terms: Control module: a small computer that runs one part of the car · SAE J2012: the standard generic code list · Powertrain: engine, transmission and emissions

1What it means in plain English

The engine computer or one of its output circuits has a fault.

2Common causes

Engine control module fault
Power or ground connection problem
Low battery or charging voltage
Wiring short or open circuit
Software or memory fault

3Can I drive?

Serious · drive with care

If the engine runs normally, drive carefully to a workshop for diagnosis. If it runs badly, stalls, or will not restart, have the car towed.

This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.

4Brand data 30

Brand	Code	Description	System
Ashok Leyland CV	P0683	Glow Plug Control Module 1 to PCM Communication Circuit SAE	Powertrain
BAIC Motor	P0683	Glow Plug Control Module to PCM Communication Circuit Brand	Powertrain
BYD	P0683	Glow Plug Control Module to PCM Communication Circuit Brand	Powertrain
Chery	P0683	LIN HCU diagnosis fault Brand	Powertrain
Chrysler	P0683	Glow Plug Control Module 1 to PCM Communication Circuit SAE	Powertrain
Daewoo	P0683	Glow Control Unit Feedback Circuit Malfunction Brand	Powertrain
DFFS	P0683	Glow Plug Control Module to PCM Communication Circuit Brand	Powertrain
DFFX	P0683	Glow Plug Control Module to PCM Communication Circuit Brand	Powertrain
DFXK	P0683	Glow Plug Control Module to PCM Communication Circuit Brand	Powertrain
EOBD	P0683	Hehkukytkentämoduuli 1 ja PCM-viestintäpiiri Brand	Powertrain
Geely	P0683	Glow Plug Control Module to PCM Communication Circuit Brand	Powertrain
GM	P0683	Glow Plug Control Module to PCM Communication Circuit Brand	Powertrain
Great Wall	P0683	Glow Plug Control Module to PCM Communication Circuit Brand	Powertrain
Hafei	P0683	Glow Plug Control Module to PCM Communication Circuit Brand	Powertrain
Holden	P0683	Glow Plug Control Module Communication Circuit Brand	Powertrain
Hyundai	P0683	Glow Plug Control Module 1 to PCM Communication Circuit SAE	Powertrain
Isuzu	P0683	Glow Plug Control Module 1 to PCM Communication Circuit SAE	Powertrain
Land Rover	P0683	Glow Plug Control Module 1 to PCM Communication Circuit SAE	Powertrain
Maserati	P0683	Glow Plug Control Module 1 to ECM Communication Circuit Brand	Powertrain
Mitsubishi	P0683	Glow plug communication Brand	Powertrain
Opel	P0683	Glow Plug Control Module to PCM Communication Circuit Brand	Powertrain
Peugeot	P0683	Glow Plug Control Module 1 to PCM Communication Circuit SAE	Powertrain
Proton	P0683	Glow plug communication Brand	Powertrain
Saab	P0683	Glow Plug Control Module to PCM Communication Circuit Brand	Powertrain
MG (SAIC)	P0683	Glow Plug Control Module to PCM Communication Circuit Brand	Powertrain
Subaru	P0683	Glow Plug Control Module 1 to PCM Communication Circuit SAE	Powertrain
Suzuki	P0683	Glow Plug Control Module to PCM Communication Circuit Brand	Powertrain
Tata	P0683	PPH Relay Control - Relay = 1- Plugs = 0 Brand	Powertrain
Toyota	P0683	Glow Plug Control Module to PCM Communication Circuit Brand	Powertrain
Volkswagen	P0683	Glow plug control module (J179): electrical malfunction; Upper limit exceeded Brand	Powertrain

Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.

5Extended variant codes 1

These 7-character codes are manufacturer-specific variants of P0683 and may be reported by some scan tools.

Brand	Code	Description	System
SsangYong	P068300	Defective CAN communication of glow plug controller Brand	Powertrain

6Related codes

Browse Pxxx codes or P068xx codes.