1A
DTC P0070: External Air Temperature Sensor Circuit Malfunction
Detecting Condition
Status displayed on SUZUKI scan tool Detecting condition Indicator / Warning light operation
CO 0 Short circuit to ground MIL lights up
CC 1 Open circuit or short circuit to 12 V
Troubleshooting
Check the connection and condition of the external air temperature sensor connector.
Repair if necessary.
Check the connection and condition of the ECM “C47” connector.
Repair if necessary.
Check IAT sensor for resistance referring to MAF and IAT Sensor Inspection:K9K .
Replace MAF and IAT sensor if necessary.
Check the insulation, continuity and absence of interference resistance of the connections:
• Between “C98-1” terminal of MAF and IAT sensor connector and “C47-19” terminal of ECM connector
• Between “C98-2” terminal of MAF and IAT sensor connector and “C47-38” terminal of ECM connector
Repair if necessary.
If DTC P0070 is still detected, replace the ECM.
After Repair
Deal with any faults detected by SUZUKI scan tool.
Clear the DTC.
Carry out a road test followed by another check with the SUZUKI scan tool.