Suzuki GRAND VITARA 2005 Service Manual page 108
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Also See for GRAND VITARA 2005:
- Owner's manual (1736 pages) ,
- Service manual (801 pages) ,
- Manual (35 pages)
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1A-76 Engine General Information and Diagnosis:
Troubleshooting
The sensors connected to supply No.2 are:
• EGR valve position sensor.
• Sensor for accelerator pedal position (APP) sensor (sub).
To locate any faulty sensor and/or connection, disconnect one of the sensors then check whether the fault
becomes stored.
If the fault is still present, repeat the operation with the other sensors.
(Wait a few seconds between each disconnection to allow the ECM to make the measurement).
If the fault is stored after a disconnection, change the faulty sensor or repair its connection.
Clear the faults created by the multiple disconnections.
If the fault is still present when both these sensors have been disconnected:
1. Check the insulation against vehicle body ground of the following connections:
– Between "C10-1" wire of EGR valve connector and "C86-43" terminal of ECM connector
– Between "C10-3" wire of EGR valve connector and "C86-20" terminal of ECM connector
– Between "E68-1" wire of accelerator pedal position (APP) sensor connector and "E66-15" terminal of ECM
connector
– Between "E68-6" wire of accelerator pedal position (APP) sensor connector and "E66-21" terminal of ECM
connector
Repair if necessary.
2. Check the insulation against +12 V of the following connections:
– Between "C10-1" wire of EGR valve connector and "C86-43" terminal of ECM connector
– Between "C10-3" wire of EGR valve connector and "C86-20" terminal of ECM connector
– Between "C10-2" wire of EGR valve connector and "C85-15" terminal of ECM connector
– Between "E68-1" wire of accelerator pedal position (APP) sensor connector and "E66-15" terminal of ECM
connector
– Between "E68-6" wire of accelerator pedal position (APP) sensor connector and "E66-21" terminal of ECM
connector
– Between "E68-5" wire of accelerator pedal position (APP) sensor connector and "E66-27" terminal of ECM
connector
Repair if necessary.
3. Check the insulation between the following connections after disconnecting the sensors and ECM:
– "E68-1" and "E68-5" wires of accelerator pedal position (APP) sensor connector.
– "C10-1" and "C10-2" wires of the EGR valve position sensor connector.
If these checks do not produce the correct results, replace the faulty sensor(s).
If the fault is still present, substitute a known-good ECM and recheck.
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