Sargent Auto-Trail
Official technical documentation and workshop diagnostics for Auto-Trail.
View official manual on manufacturer's site ↗Frequently Asked Questions
Q: What Sargent equipment was fitted to a 2019 - 2022 Auto-Trail Motorhomes?
Overview
A quick guide to the Sargent equipment in Auto-Trail Motorhomes built for the 2019 to 2022 model years.
Not sure exactly which Sargent kit your Auto-Trail motorhome has? This index will help you identify each product and what it does.
Twist, Benivan & Toleno
EM40 / EM41 Fiat Interface Unit — provides fused outputs for the tow bar, the vehicle battery supply and the 12V fridge, plus a marker-lights output, and passes through all the Fiat base vehicle's own signals (ignition on, engine running, door lock/unlock) for other systems to use. Used in every Fiat-based Auto-Trail motorhome until 2021; from 2022, the EM40 covers models with a small fridge/freezer and the EM41 covers those with a larger one. Full details on the EM40 are on Sargent's website, and on the EM41 there too.
EC176 PSU — pairs with Water Level Sensors and a Control Panel for a complete Power Control System, and may also come with an internal/external temperature sensor and tracking system depending on the control panel fitted. Full details on the EC176 are on Sargent's website.
EC361 Control Panel — pairs with the EC176 PSU to control and monitor the vehicle's electrical systems: batteries, chargers, lighting and water tanks. Full details on the EC361 are on Sargent's website.
EM3.5 Interface — automatically switches a monitor to show the reversing camera's feed as soon as reverse gear is selected. Full details on the EM3.5 are on Sargent's website.
Tribute, Imala & V-Line
EM40 / EM41 Fiat Interface Unit — provides fused outputs for the tow bar, the vehicle battery supply and the 12V fridge, plus a marker-lights output, and passes through all the Fiat base vehicle's own signals (ignition on, engine running, door lock/unlock) for other systems to use. Used in every Fiat-based Auto-Trail motorhome until 2021; from 2022, the EM40 covers models with a small fridge/freezer and the EM41 covers those with a larger one. Full details on the EM40 are on Sargent's website, and on the EM41 there too.
VLM5 Vehicle Light Monitoring Unit — watches the motorhome's rear indicators and flags any failure on the dashboard (and its own flashing indicator), with the option to add a towing harness giving a 13-pin socket for a caravan, trailer or light board. Full details on the VLM5 are on Sargent's website.
EC176 PSU — pairs with Water Level Sensors and a Control Panel for a complete Power Control System, and may also come with an internal/external temperature sensor and tracking system depending on the control panel fitted. Full details on the EC176 are on Sargent's website.
EC362 Control Panel — pairs with the EC176 PSU to control and monitor the vehicle's electrical systems: batteries, chargers, lighting and water tanks. Full details on the EC362 are on Sargent's website.
EM3.5 Interface — automatically switches a monitor to show the reversing camera's feed as soon as reverse gear is selected. Full details on the EM3.5 are on Sargent's website.
Tracker, Frontier (Delaware, Scout, Comanche), Grande Frontier
EM40 / EM41 Fiat Interface Unit — provides fused outputs for the tow bar, the vehicle battery supply and the 12V fridge, plus a marker-lights output, and passes through all the Fiat base vehicle's own signals (ignition on, engine running, door lock/unlock) for other systems to use. Used in every Fiat-based Auto-Trail motorhome until 2021; from 2022, the EM40 covers models with a small fridge/freezer and the EM41 covers those with a larger one. Full details on the EM40 are on Sargent's website, and on the EM41 there too.
VLM5 Vehicle Light Monitoring Unit — watches the motorhome's rear indicators and flags any failure on the dashboard (and its own flashing indicator), with the option to add a towing harness giving a 13-pin socket for a caravan, trailer or light board. Full details on the VLM5 are on Sargent's website.
EC700 PSU — powers and protects the vehicle's electrical equipment, typically paired with Water Level Sensors, a Vehicle Interface Unit, a Battery Charger and a Control Panel, forming a full Power Control System. Full details on the EC700 PSU are on Sargent's website.
EC700 Control Panel — is used alongside the EC700 Power Supply Unit, controlling and monitoring the vehicle's electrical systems: batteries, chargers, lighting, water tanks and solar panels. Full details on the EC700 Control Panel are on Sargent's website.
Q: What Sargent equipment was fitted to a 2013 - 2018 Auto-Trail Motorhomes?
Overview
A quick guide to the Sargent equipment in Auto-Trail Motorhomes built for the 2013 to 2018 model years.
Not sure exactly which Sargent kit your Auto-Trail motorhome has? This index will help you identify each product and what it does.
V-Line
EM40 Fiat Interface Unit — supplies fused outputs for the tow bar, the vehicle battery supply and the 12V fridge, plus a marker-lights output, and passes through the Fiat base vehicle's own signals (ignition on, engine running, door lock/unlock) for other systems to use. Full details on the EM40 are on Sargent's website.
EC500 PSU — powers and protects the vehicle's electrical equipment, together with a control panel, a solar panel and water level sensors, forming a full Power Control System. Full details on the EC500 PSU are on Sargent's website.
EC480 Control Panel — pairs with an EC500 Series Power Supply Unit to control and monitor the vehicle's electrical systems: batteries, chargers, lighting, water tanks and solar panels. Full details on the EC480 Control Panel are on Sargent's website.
PX300 Battery Charger — a 300W intelligent power supply and 3-stage battery charger, able to handle most battery chemistries up to 200Ah (lead-acid, Gel and AGM included). Full details on the PX300 charger are on Sargent's website.
Q: What Sargent equipment was fitted to a 2011 - 2012 Auto-Trail Motorhomes?
Overview
A quick guide to the Sargent equipment in Auto-Trail Motorhomes built for the 2011 to 2012 model years.
Not sure exactly which Sargent kit your Auto-Trail motorhome has? This index will help you identify each product and what it does.
From 2011 to 2012, these motorhomes came with an EC480 or EC300 Control Panel.
Tribute
EC155 PSU — Sargent's EC155B power control and distribution system for the vehicle's electrical equipment, built around the EC155 PSU as its hub, connecting to the rest of the system's components, plus the EC51 control panel. Full details on the EC155 are on Sargent's website.
EC51 Control Panel — switches and monitors leisure battery, water pump and power, plus battery and water tank capacity readings. Full details on the EC51 are on Sargent's website.
Motorhomes
EM40 Interface Unit — supplies fused outputs for the tow bar, the vehicle battery supply and the 12V fridge, plus a marker-lights output, and passes through the Fiat base vehicle's own signals (ignition on, engine running, door lock/unlock) for other systems to use. Full details on the EM40 are on Sargent's website.
PX300 Battery Charger — a 300W intelligent power supply and 3-stage battery charger, able to handle most battery chemistries up to 200Ah (lead-acid, Gel and AGM included). Full details on the PX300 charger are on Sargent's website.
EC500 PSU — powers and protects the vehicle's electrical equipment, together with a control panel, a solar panel and water level sensors, forming a full Power Control System. Full details on the EC500 PSU are on Sargent's website.
EC480 Control Panel — pairs with an EC500 Series Power Supply Unit to control and monitor the vehicle's electrical systems: batteries, chargers, lighting, water tanks and solar panels. Full details on the EC480 Control Panel are on Sargent's website.
EC300 Control Panel — pairs with an EC500 Series Power Supply Unit to control and monitor the vehicle's electrical systems: batteries, chargers, lighting, water tanks and solar panels. Full details on the EC300 are on Sargent's website.
Q: What Sargent equipment was fitted to a 2009 - 2010 Auto-Trail Motorhomes?
Overview
A quick guide to the Sargent equipment in Auto-Trail Motorhomes built for the 2009 to 2010 model years.
Not sure exactly which Sargent kit your Auto-Trail motorhome has? This index will help you identify each product and what it does.
Excel
EM50 Interface Unit — version A, fitted across all Auto-Trail Apache/Tracker, Cheyenne and Frontier models, with its polyfuse rating and step timing matched to the Omnistep slide-out Auto-Trail used; split charge wasn't built into this unit since that feature already lived in the EC225 and EC325/8 power systems fitted alongside it. Full details on the EM50 are on Sargent's website.
EC225 PSU — powers and protects the vehicle's electrical equipment, working alongside a Solar Panel, Water Level Sensors and a Control Panel, forming a full Power Control System. Full details on the EC225 are on Sargent's website.
EC101 Control Panel — pairs with an EC225 Power Supply Unit to control and monitor the vehicle's electrical systems: batteries, chargers, lighting, water tanks and solar panels. Full details on the EC101 are on Sargent's website.
Q: What Sargent equipment was fitted to a 2007 - 2008 Auto-Trail Motorhomes?
Overview
A quick guide to the Sargent equipment in Auto-Trail Motorhomes built for the 2007 to 2008 model years.
Not sure exactly which Sargent kit your Auto-Trail motorhome has? This index will help you identify each product and what it does.
From 2007 to 2008, these motorhomes came with either an EC325(EC328) or an EC225 PSU - which control panel they got (EC325, EC200 or EC100) depended on which of those two PSUs was fitted.
Motorhome
EC225 PSU — powers and protects the vehicle's electrical equipment, working alongside a Solar Panel, Water Level Sensors and a Control Panel, forming a full Power Control System. Full details on the EC225 are on Sargent's website.
EC325(EC328) PSU — powers and protects the vehicle's electrical equipment, working alongside a Solar Panel, Water Level Sensors and a Control Panel, forming a full Power Control System. Full details on the EC325(EC328) are on Sargent's website.
EC325 Control Panel — pairs with an EC200 or EC300 Series Power Supply Unit to control and monitor the vehicle's electrical systems: batteries, chargers, lighting, water tanks and solar panels. Full details on the EC325 are on Sargent's website.
EC200 Control Panel — pairs with an EC200 or EC300 Series Power Supply Unit to control and monitor the vehicle's electrical systems: batteries, chargers, lighting, water tanks and solar panels. Full details on the EC200 are on Sargent's website.
EC100 Control Panel — pairs with an EC225 Power Supply Unit to control and monitor the vehicle's electrical systems: batteries, chargers, lighting, water tanks and solar panels. Full details on the EC100 are on Sargent's website.
Q: What Sargent equipment was fitted to a 2003 - 2006 Auto-Trail Motorhomes?
Overview
A quick guide to the Sargent equipment in Auto-Trail Motorhomes built for the 2003 to 2006 model years.
Not sure exactly which Sargent kit your Auto-Trail motorhome has? This index will help you identify each product and what it does.
From 2003 to 2006, these motorhomes came with either an EC200 PSU or a PSU2005.
Motorhome
EC200 PSU — powers and protects the vehicle's electrical equipment, working alongside a Solar Panel, Water Level Sensors and a Control Panel, forming a full Power Control System. Full details on the EC200 PSU are on Sargent's website.
PSU2005 PSU — a power control and distribution system for the vehicle's electrical equipment, protecting both the 240V (mains) and 12V sides, supplying 12V power and keeping the internal leisure battery charged. Full details on the PSU2005 are on Sargent's website.
EC200 Control Panel — pairs with an EC200 or EC300 Series Power Supply Unit to control and monitor the vehicle's electrical systems: batteries, chargers, lighting, water tanks and solar panels. Full details on the EC200 Control Panel are on Sargent's website.