Caterpillar 3100 HEUI ECM 22-13 Timing Sensor Calibration Guide

Use this procedure if diagnostic Code 22-13 check timing Sensor Calibration (42) is Active. This code occurs only with a new ECM before the ECM has has had timing calibration performed. It is important to perform the calibration before permanently installing the ECM to allow access and installation of the Timing Probe into the timing calibration port In the flywheel.

 

Background

The Electronic Control Module (ECM) requires the timing calibration to determine the relative location of the timing wheel to the actual cam top center location.This is necessary for the engine to operate correctly for emissions.

 

NOTE:

A timing calibration is ONLY REQUIRED following an ECM replacement, not after replacing the Speed/Timing Sensors. Also, performing a timing calibration to improve performance is unnecessary and will not improve performance unless a 22-13 diagnostic code is the reason for the calibration.

 

AUG96 and Later Personality Modules

It an ECM replacement is required and both the suspect ECM and replacement ECM have AUG96 or later Personality Module Release Dates, the ECM parameters and timing calibration can be transferred from the suspect ECM to the replacement ECM.

 

Timing calibration will NOT be necessary. This feature requires Caterpillar Electronic Technician(ET) and is only possible if the existing ECM can communicate with Caterpillar Electronic Technician(ET).

 

PID-FMI and Description of Code:

22-13 check timing sensor calibration(42)

The ECM has been replaced and the Engine speed/timing sensors have not been calibrated.

 

System response:

Electronic system response-The ECM will use default timing.

Engine Response-The engine will not be operating with calibrated timing

 

Preparations:

Caterpillar ET 2021B 2019C 2018A Electronic Technician Software Free Download

Caterpillar SIS 2022A 2019 2018 Full EPC+Service Manual Free Download

CAT ET4 478-0235 Adapter

 

Step 1: Install the Timing Adapter Group

Turn the ignition key OFF, engine OFF.

Remove the timing calibration plug from in front of the flywheel housing on the left side of the engine in back of and near the bottom of the ECM.

NOTE: the ECM may have to unbolted from the engine to access the timing calibration port.

Install he Timing Probe Adapter Sleeve into the hole for the plug.

Step 2: Install 6V2197 Timing Probe on Engine.

Put a 2D6392 O-Ring Seal on the end of the Magnetic Pickup Sensor (a small amount of clean engine oil will allow the seal slide onto the sensor more easily).

Push the sensor through the adapter until lit comes in contact with the outermost portion of the flywheel timing calibration.

ring and move the O-Ring seal down against the adapter.

Withdraw the sensor 0.04 in.(1.0 mm) and hand tighten the nut on the adapter sleeve to secure the magnetic pickup in place.

Disconnect Vehicle Speed/TC Calibration Connector J24/P24.

Connect the 6V2197 Timing Probe to the 7X1695 Deutsch DT Timing Harness Adapter.

Do not connect the DT Timing Harness Adapter to the Vehicle Speed/TC Probe Connector P24 until you are ready to perform the timing calibration. Connect cable for magnetic pickup to the magnetic pickup sensor.

NOTE: If the Timing Probe is connected to the Vehicle Speed/TC Connector when the Electronic Service Tool is not in the

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