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Honda Fit/Jazz - DTC Troubleshooting: P1890 (42-1) (CVT)

DTC Troubleshooting: P1890 (42-1)

DTC P1890: Problem in Shift Control System


NOTE: Record all freeze data before you troubleshoot.
1.Check whether the another DTC is indicated.

Is the another DTC indicated?


YES - Perform the troubleshooting for the indicated DTC(s). Recheck for DTC P1890 after troubleshooting.


NO - Go to 2


Measure the stall speed RPM in D, S, L, and R positions.

Is the stall speed over 3,500 rpm (min-1)?


YES - Replace the transmission.n


NO - If the stall speed is below 2,000 rpm (min-1), replace the control valve body. If the stall speed is in 2,000-3,500 rpm (min-1), go to 3.


3.Turn the ignition switch OFF.

4.Set the digital multitester to monitor the throttle position sensor voltage between PCM connector terminals A15 and A23 or A24.

5.Drive the vehicle in D position on a flat road at 60 km/h (37 mph) with throttle position sensor voltage 2.0 V, and measure the engine speed RPM.

Is the engine speed in 2,200-3,100 rpm (min-1)?


YES - Replace the control valve body.n


NO - Replace the transmission.n

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