DTC C1870-00 (77-01): Fuel and Emissions Related Malfunction, C1871-00 (77-04): Automatic Transmission Related Malfunction, C1872-00 (77-02): VSA Modulator-Control Unit Related Malfunction

NOTE:  Before you troubleshoot, Refer to: HOW TO TROUBLESHOOT THE REAL TIME AWD SYSTEM (AWD) .

DTC (Real Time AWD)

1. Problem verification (DTC check)

   - 1. Turn the vehicle to the ON mode.

   - 2. Clear the DTC with the HDS.

   - 3. Start the engine.

   - 4. Check for DTCs with the HDS.

   NOTE:  These codes are stored whenever the following systems DTCs are detected.

   • When DTC C1870-00 is indicated, check the PGM-FI system DTC.
   • When DTC C1871-00 is indicated, check the CVT system DTC.
   • When DTC C1872-00 is indicated, check the VSA system DTC.

   DTC Description	DTC	Freeze Frame
   C1870-00: Fuel and Emissions Related Malfunction
   C1871-00: Automatic Transmission Related Malfunction

   DTC Description	DTC	Freeze Frame
   C1872-00: VSA Modulator-Control Unit Related Malfunction

   Is DTC C1870-00, C1871-00, or C1872-00 indicated?

   DTC C1870-00 is indicated

   The failure is duplicated. PGM-FI system DTC - Refer to: HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS or HOW TO TROUBLESHOOT THE CVT SYSTEM(CVT SYSTEM) .

   DTC C1871-00 is indicated

   The failure is duplicated. Check the CVT system DTC - Refer to: HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS or HOW TO TROUBLESHOOT THE CVT SYSTEM(CVT SYSTEM) .

   DTC C1872-00 is indicated

   The failure is duplicated. Check the VSA system DTC - Refer to: HOW TO TROUBLESHOOT THE VSA SYSTEM .

   DTC is not indicated

   Intermittent failure, the system is OK at this time. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the Freeze data/on-board snapshot.