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Diagnostic Procedure
NHEC0248
1 CHECK VEHICLE SPEED SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector and combination meter harness connector.
3. Check harness continuity between ECM terminal 86 and combination meter terminal 32.
Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK © GO TO 3.
NG © GO TO 2.
2 DETECT MALFUNCTIONING PART
Check the following.
I Harness connectors M46, F44
I Harness for open or short between ECM and combination meter
© Repair open circuit or short to ground or short to power in harness or connectors.
3 CHECK SPEEDOMETER FUNCTION
Make sure that speedometer functions properly.
OK or NG
OK © GO TO 5.
NG © GO TO 4.
4 CHECK SPEEDOMETER CIRCUIT FOR OPEN AND SHORT
Check the following.
I Harness connectors M81, F49
I Harness connectors F19, F111
I Harness connectors M15, E81
I Harness for open and short between combination meter and ABS actuator and electric unit
I Harness for open or short between combination meter and vehicle speed sensor
I Harness for open or short between vehicle speed sensor and ECM
I Harness for open or short between vehicle speed sensor and TCM (Transmission control module)
OK or NG
OK © Check combination meter and vehicle speed sensor. Refer to EL section.
NG © Repair open circuit or short to ground or short to power in harness or connectors.
5 CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-144.
© INSPECTION END
DTC P0500 VEHICLE SPEED SENSOR (VSS)
Diagnostic Procedure
EC-428
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