DTC P193B:14 [INSTRUMENT CLUSTER]

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DTC P193B:14

Accelerator pedal position (APP) sensor circuit malfunction
Detection Condition
APP sensor resistance value not input for a continuous 5 s
Possible Causes
•  Open or short to ground circuit in wiring harness between APP sensor and instrument cluster
•  APP sensor malfunction
•  Instrument cluster malfunction


System Wiring Diagram

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Diagnostic Procedure

Step

Inspection

Action
1
INSPECT APP SENSOR CONNECTOR CONDITION
•  Turn the ignition switch to the LOCK position.
•  Disconnect the APP sensor connector.
•  Inspect the connector and terminals (corrosion, damage, pin disconnection).
•  Are the connector and terminals normal?
Yes
Go to the next step.
No
Repair/replace the connector or terminal.
After repair procedure, go to Step 6.
2
INSPECT APP SENSOR CIRCUIT FOR SHORT CIRCUIT TO GROUND
•  Inspect for continuity between the following circuits:
―  APP sensor terminal A (wiring harness-side)
―  APP sensor terminal B (wiring harness-side)
•  Is there any continuity?
Yes
Repair/replace the malfunctioning vehicle wiring harness.
After repair procedure, go to Step 6.
No
Go to the next step.
3
INSPECT APP SENSOR
•  Inspect the APP sensor.
•  Is the APP sensor normal?
Yes
Go to the next step.
No
Replace the APP sensor.
(See ACCELERATOR PEDAL REMOVAL/INSTALLATION [MZ-CD 1.4 DI Turbo].)
(See ACCELERATOR PEDAL REMOVAL/INSTALLATION [MZ-CD 1.6 (Y6)].)
After replacement, go to Step 6.
4
VERIFY INSTRUMENT CLUSTER CONNECTOR CONDITION
•  Disconnect the instrument cluster connector.
•  Inspect the connector and terminals (corrosion, damage, pin disconnection).
•  Are the connector and terminals normal?
Yes
Go to the next step.
No
Repair/replace the connector or terminal.
After repair procedure, go to Step 6.
5
INSPECT APP SENSOR CIRCUIT FOR OPEN CIRCUIT
•  Turn the ignition switch to the LOCK position.
•  Inspect for continuity between the following circuits:
―  APP sensor terminal A (wiring harness-side) and instrument cluster terminal 1F (wiring harness-side)
―  APP sensor terminal B (wiring harness-side) and instrument cluster terminal 1D (wiring harness-side)
•  Is there continuity?
Yes
Go to the next step.
No
Repair or replace the wiring harness for a possible open circuit, then go to the next step.
6
VERIFY THAT SAME DTC IS NOT OUTPUT AGAIN
•  Reconnect the disconnected connectors.
•  Clear the DTC.
•  VERIFY DTCs.
•  Is DTC P193B:14 output?
Yes
Repeat the inspection from Step 1.
•  If the malfunction does not recur, go to the next step.
•  If the malfunction recurs, replace the instrument cluster.
No
Go to the next step.
7
VERIFY THAT NO OTHER DTCs ARE PRESENT
•  Verify other DTC displayed.
•  Are any other DTCs output?
Yes
Perform the corresponding DTC inspection.
No
DTC troubleshooting completed.