Suzuki Wagon R Manual page 3717

6-4-36 ENGINE GENERAL INFORMATION AND DIAGNOSIS (Z10XEP AND Z12XEP ENGINES)
B-19: Check: Intermittent Faults
Test
T01 Intermittent System Operation
NOTE:
Refer to "Intermittent and Poor Connections Inspection" in Sec-
tion 0A.
Preliminary diagnostic check (visual inspection)
• Check all sensors, actuators and the wiring harness of the system
for corrosion and damages.
• Check all connectors of the system for corrosion and for damaged
terminals.
• Check all ground connections of the system for corrosion and
damages.
• Check if the fault was recognized in an area of strong electromag-
netic sources e.g. near radio stations.
Diagnostic Trouble Codes
• Read and record trouble codes.
• Check for history trouble code. If a history trouble code is stored
this may indicate the circuit which has the intermittent condition.
History trouble code is leading to an intermittent problem. This
trouble codes refer to a related functional group. To find the defec-
tive component the following test steps may de helpful.
• Use the following table to obtain the concerned functional group
and perform the following additional test steps, while performing
the troubleshooting in the C-x tables.
Refer to Table B-01 Diagnostic Trouble Code
Move the related connectors, wiring harness and components in
order to find the failure. Switch on all electric consumers by turns,
because this can cause an electromagnetic interference in a circuit.
Use the oscilloscope to observe the wiring harness for disturbances.
Operate the system under different conditions over a considerable
time.
Snapshot function of the Scan Tool
• Select the snapshot function of the Scan Tool. Set the Scan Tool to
trigger by any DTC and try to recreate the conditions that may
cause the trouble code to be set. Use the Scan Tool application to
analyses the related data list parameters.
The disturbances in the signal can be observed at the trigger point
where the trouble code is set.
• Use the following table to obtain the concerned functional group
and perform the following additional test steps, while performing
the troubleshooting in the C-x tables.
Refer to Table B-01 Diagnostic Trouble Code
Refer to Table B-02 Data List
Move the related connectors, wiring harness and components in
order to find the failure. Switch on all electric consumers by turns,
because this can cause an electromagnetic interference in a circuit.
Use the oscilloscope to observe the wiring harness for disturbances.
Operate the system under different conditions over a considerable
time.
Work Order Description Nominal Value