i-350 L5-3.5L (2006)
IMPORTANT: The J 39200 must be used in order to perform the following procedure since the J 39200 can monitor current, resistance or voltage
while recording the minimum (MIN), and maximum (MAX) values measured.
1. Connect the J 39200 to both sides of a suspected connector (still connected), or from one end of a suspected circuit to the other. Refer to
Troubleshooting with a Digital Multimeter for information on connecting the J 39200 to the circuit.
2. Set the rotary dial of the J 39200 to the V (AC) or V (DC) position.
3. Press the range button of the J 39200 in order to select the desired voltage range.
4. Press the MIN MAX button of the J 39200. The J 39200 displays 100 msRECORD and emits an audible tone (beep).
IMPORTANT: The 100 ms RECORD mode is the length of time an input must stay at a new value in order to record the full change.
5. Simulate the condition that is potentially causing the intermittent connection, either by wiggling the connections or the wiring, test driving, or
performing other operations. Refer to Inducing Intermittent Fault Conditions.
6. Listen for the audible Min Max Alert which indicates that a new minimum or maximum value has been recorded.
7. Press the MIN MAX button once in order to display the MAX value and note the value.
8. Press the MIN MAX button again in order to display the MIN value and note the value.
9. Determine the difference between the MIN and MAX values.
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If the variation between the recorded MIN and MAX voltage values is 1 Volt or greater an intermittent open or high resistance condition
exists. Repair the condition as necessary.
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If the variation between the recorded MIN and MAX voltage values is less than 1 Volt an intermittent open or high resistance condition does
not exist.
Scan Tool Snapshot Procedure
SCAN TOOL SNAPSHOT PROCEDURE
TOOLS REQUIRED
J 42598 Vehicle Data Recorder
SCAN TOOL SNAPSHOT PROCEDURE
Snapshot is a recording of the parameters of a control module while the snapshot is being made. A snapshot may be used to analyze the data during the
time a vehicle condition is current. This allows you to concentrate on making the condition recur, rather than trying to view all the data in anticipation
of the fault. The snapshot contains information around a trigger point that you have determined.
There are many different scan tools that have varying functions. For example, the Tech 2 Scan Tool can also graph parameters separately or in
combinations of parameters for comparison. Only a single data list may be recorded in each snapshot. It can trigger a Snapshot manually at the time
the symptom is noticed, or be set up in advance to trigger when a DTC sets. The Tech 2 Scan Tool has the ability to store 2 snapshots. The ability to
record 2 snapshots allows comparing hot versus cold and good versus bad vehicle scenarios. The snapshots are stored on a first-in, first-out basis. If a
third snapshot is taken, the first snapshot stored in the memory will be lost.
Snapshots can be 1 of 2 types:
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Snapshot-taken from the Snapshot menu choice
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Quick Snapshot-taken from the Data Display soft key choice, does not contain DTC information
When a snapshot is taken, it is recorded on the memory card and may contain as many as 1,200 frames of information. Because the snapshot is
recorded onto the memory card, snapshots are not lost if the Tech 2 Scan Tool is powered down.
The snapshot replay screen has a plot soft key that can be of great value for intermittent diagnosis. The snapshot plot feature can help you to quickly
determine if a sensor is outside of its expected values by plotting 3 parameters at a time. The data will be displayed both graphically and numerically
showing the minimum and maximum values for all frames captured. This is helpful, especially if the fault occurs only once and does not set a DTC.
VEHICLE DATA RECORDER
The J 42598 is connected to the data link connector (DLC) and sent with the customer. The J 42598 captures data for later retrieval and analysis by the
technician. Refer to the vehicle data recorder user instructions for more information.
Circuit Protection - Fuses
CIRCUIT PROTECTION - FUSES
