#
DTC P0500 [L8, LF, L3]

id0102a1808400

DTC P0500 | VSS circuit problem
--- | ---
DETECTION CONDITION | With ABS/DSC • If an error in the wheel speed signal from the ABS/DSC HU/CM is detected by CAN, the PCM detects a malfunction in the vehicle speed signal. Without ABS/DSC • Vehicle speed signal from vehicle speed sensor is below 3.7 km/h {2.3 mph} when the following conditions are met: - Neutral switch and clutch pedal position switch are OFF - Load is above 40 % - Engine speed is 2,000 rpm or above - Brake switch is OFF Diagnostic support note • This is a continuous monitor (CCM). • The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM. • PENDING CODE is available if the PCM detects the above malfunction condition during the first drive cycle. • FREEZE FRAME DATA is available. • Are any DTCs is stored in the PCM memory.
POSSIBLE CAUSE | With ABS/DSC HU/CM • Front ABS wheel-speed sensor malfunction • ABS/DSC HU/CM malfunction • Connector or terminal malfunction • PCM malfunction Without ABS/DSC HU/CM • VSS malfunction • Connector or terminal malfunction • Open circuit between PCM terminal 2M and VSS terminal A • Open circuit between PCM terminal 2N and VSS terminal B • Short to ground between PCM terminal 2M and VSS terminal A • Short to ground between PCM terminal 2N and VSS terminal B • Short to power between PCM terminal 2M and VSS terminal A • Short to power between PCM terminal 2N and VSS terminal B • PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAS BEEN RECORDED • Has FREEZE FRAME DATA been recorded? | Yes | Go to the next step.
No | Record the FREEZE FRAME on the repair order, then go to the next step.
2 | VERIFY RELATED REPAIR INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available? | Yes | Perform repair or diagnosis according to the available Service information. If the vehicle is not repaired, go to the next step.
No | Go to the next step.
3 | VERIFY CURRENT INPUT SIGNAL STATUS-IS CONCERN INTERMITTENT OR CONSTANT • Connect the WDS or equivalent to DLC-2. • Start the engine. • Access VSS PID using the WDS or equivalent. - Vehicle speed 20 km/h {12.4 mph}: 20km/h {12.4 mph} - Vehicle speed 40 km/h {24.8 mph}: 40km/h {24.8 mph} • Are PID readings within specification? | Yes | Go to the INTERMITTENT concern troubleshooting procedure. (See INTERMITTENT CONCERN TROUBLESHOOTING [L8, LF, L3].)
No | Go to the next step.
4 | INSPECT VSS CONNECTOR FOR POOR CONNECTION • Verify that the VSS connector is connected securely. • Is connector normal? | Yes | Go to the next step.
No | Reconnect the connector, then go to Step 11.
5 | INSPECT THE VSS • Perform VSS inspection. (See VEHICLE SPEEDOMETER SENSOR (VSS) INSPECTION [JA5AX-EL].) • Is the VSS normal? | Yes | Go to the next step.
No | Replace VSS, then go to Step 11.
6 | INSPECT VSS CIRCUIT FOR SHORT TO POWER • Turn the ignition switch off. • Disconnect the VSS connector. • Turn the ignition switch to the ON position (Engine off). • Measure the voltage following terminals: - VSS terminal A (wiring harness-side) - VSS terminal B (wiring harness-side) • Is any voltage reading? | Yes | Repair or replace suspected harness, then go to Step 11.
No | Go to the next step.
7 | INSPECT VSS CIRCUIT FOR SHORT TO GROUND • inspect for continuity between following terminal and body ground: - VSS terminal A (wiring harness-side) - VSS terminal B (wiring harness-side) • Is there continuity? | Yes | Repair or replace suspected harness, then go to Step 11.
No | Go to the next step.
8 | INSPECT VSS CIRCUITS FOR SHORT CIRCUIT • inspect for continuity between the VSS connector terminals A and B (wiring harness-side). • Is there continuity? | Yes | Repair or replace suspected harness, then go to Step 11.
No | Go to the next step.
9 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/ pulled-out terminals, corrosion). • Is there any malfunction? | Yes | Repair terminal, then go to Step 11.
No | Go to the next step.
10 | INSPECT VSS CIRCUIT FOR OPEN CIRCUIT • inspect for continuity between following terminals (wiring harness-side): - VSS terminal A and PCM terminal 2M - VSS terminal B and PCM terminal 2N • Is there continuity? | Yes | Inspect VSS pulse wheel for damage. Replace VSS pulse wheel and go to the next step.
No | Repair or replace suspected harness, then go to the next step.
11 | VERIFY TROUBLESHOOTING OF DTC P0500 COMPLETED • Make sure to reconnect all disconnected connectors. • Turn the ignition switch to the ON position (Engine off). • Clear the DTC from PCM memory using the WDS or equivalent. • Warm up the engine. • Access RPM and LOAD PID using the WDS or equivalent. • Drive vehicle under the following conditions for 18 s. - Engine speed: 2,000 rpm or above - Gear: Gear is in other than NEUTRAL - Load: 40 % or above • Is PENDING CODE for this DTC present? | Yes | Replace PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [L8, LF, L3].)
No | Go to the next step.
12 | VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [L8, LF, L3].) • Are any DTCs present? | Yes | Go to applicable DTC troubleshooting. (See DTC TABLE [L8, LF, L3].)
No | Troubleshooting completed.