Truck Repair

How to Solve Scania Truck Alarm System ALM259 Short Circuit

Here is the instruction show you guide on how to solve Scania truck alarm system ALM259 Secondary wake-up signal,short circuit.

Related Contents:

2024.07 Scania SDP3 V2.61.2 V2.40 Diagnostic Software Free Download

Scania VCI3 Diagnostic Adapter Full Chips

2024 2018 Scania Multi EPC Parts Catalogue Free Download

 

 

Secondary wake-up signal, short circuit

Error identification

The secondary wake-up signal is short-circuited to ground.

 

Cause

Faulty cable harness for the secondary wake-up signal.

Faulty ALM control unit E7.

Notes

Symptom

The control unit cannot wake up or be woken up by units connected in the CAN network.

 

Action

Disconnect the harness-to-component connector to ALM control unit pin A3.

Measure for short circuits throughout the cable harness.

If there are several harness-to-component connectors between the wake-up signal and the control unit, disconnect them and measure to locate the fault.

If the fault is not in the cable harness it is probably an internal fault in the ALM control unit.

 

For more information about Scania truck,please refer to:Scania Trouble Repair.

auto

Recent Posts

Jungheinrich Junior AME13 Spring-Loaded Brake Electrical Connection Removal Guide

It is necessary step to remove electrical connection cable before you do disassemble or some…

8 hours ago

How to Use Nexiq eTechnician Function Test?

Nexiq eTechnician provides a number of special tests to assist you with your vehicle diagnostic…

2 days ago

JCB JS140 Excavator P0523-68 Engine Oil Pressure Low Solution

Here car-auto-repair.com show you guide on how to repair JCB JS140 excavator P0523-68 trouble code…

3 days ago

Volvo Version 3 and 4 Truck Oil Pressure Test by Volvo Techtool

Here is the instruction show you guide on how to use Volvo TECHTOOL and VOCOM adapter to…

5 days ago

How to Solve Allison 3000 & 4000 Gen5 P071A Neutral at Stop Input Failed ON

This instruction show you guide on how to solve Allison 3000 & 4000 Gen5 transmission…

7 days ago

Mack and Volvo EPA13 GHG17 Engine NOx Conversion Monitor Test

This instruction show you guide on how to use JPRO TO perform Mack and Volvo…

1 week ago