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DTC P2101 [L8, LF, L3]

id0102a1811100

DTC P2101 | Throttle actuator circuit range/performance
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DETECTION CONDITION | • If any of the following conditions continue for a specified period of time or more the PCM detects a malfunction in the throttle actuator. - The voltage of the motor power supply is 4 V or less while the motor relay is on - There is a system error in the electrical throttle control system of the PCM - The temperature of the electrical throttle control system in the PCM is 180 °C {356 °F} or more Diagnostic support note • This is a continuous monitor. (CCM) • The MIL illuminates if the PCM detects the above malfunction conditions during first drive cycle. • PENDING CODE is available if the PCM detects the above malfunction condition. • FREEZE FRAME DATA is available. • Are any DTCs is stored in the PCM memory.
POSSIBLE CAUSE | • Drive-by-wire relay and related circuit malfunction • Main relay and related circuit malfunction • Throttle position sensor No.1 and related circuit malfunction • Throttle position sensor No.2 and related circuit malfunction • PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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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 RELATED PENDING AND STORED DTCS • Turn the ignition switch off, then to the ON position (Engine off). • Verify the pending and stored DTCs using the WDS or equivalent. • Is any DTC present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [L8, LF, L3].).
No | Go to the next step.
4 | IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA • Is DTC P2101 on FREEZE FRAME DATA? | Yes | Go to the next step.
No | Go to the troubleshooting procedures for DTC on FREEZE FRAME DATA.
5 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect the PCM connector. • Inspect for poor connection (such as damaged, pulled out terminals, corrosion). • Is there any malfunction? | Yes | Repair or replace the terminal, then go to Step 22.
No | Go to the next step.
6 | INSPECT MAIN RELAY OUTPUT VOLTAGE • Turn the ignition switch off. • Connect the PCM connector. • Turn the ignition switch to the ON position (Engine off). • Measure the voltage between PCM terminal 1BE and body ground. • Is the voltage B+? | Yes | Go to Step 13.
No | Go to the next step.
7 | INSPECT MAIN RELAY CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect the main relay. • Inspect for poor connection (such as damaged, pulled out terminals, corrosion). • Is there any malfunction? | Yes | Repair or replace the terminal, then go to Step 22.
No | Go to the next step.
8 | INSPECT POWER SUPPLY OF MAIN RELAY • Turn the ignition switch to the ON position (Engine off). • Measure the voltage between main relay terminal A (wiring harness-side) and body ground. • Is the voltage B+? | Yes | Go to the next step.
No | Repair or replace the wiring harness for an open circuit, then go to Step 22.
9 | INSPECT POWER SUPPLY FOR CONTROL CIRCUIT OF MAIN RELAY • Turn the ignition switch to the ON position (Engine off). • Measure the voltage between main relay terminal D (wiring harness-side) and body ground. • Is the voltage B+? | Yes | Go to the next step.
No | Go to Step 22.
10 | INSPECT MAIN RELAY • Inspect the main relay. (See RELAY INSPECTION.) • Is the main relay normal? | Yes | Go to the next step.
No | Replace the main relay, then go to Step 22.
11 | INSPECT POWER CIRCUIT FOR OPEN CIRCUIT • Turn the ignition switch off. • Disconnect the main relay and the PCM connector. • Inspect for continuity between main relay terminal C (wiring harness-side) and PCM terminal 1BE (wiring harness-side). • Is there continuity? | Yes | Go to the next step.
No | Repair or replace the wiring harness for an open circuit, then go to Step 22.
12 | INSPECT CONTROL CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between main relay terminal E (wiring harness-side) and PCM terminal 1Q (wiring harness-side). • Is there continuity? | Yes | Repair or replace the wiring harness for an open circuit, then go to Step 22.
No | Go to Step 22.
13 | INSPECT DRIVE-BY-WIRE RELAY OUTPUT VOLTAGE • Turn the ignition switch to the ON position (Engine off). • Measure the voltage between PCM terminal 1BF (wiring harness-side) and body ground. • Is the voltage B+? | Yes | Go to Step 20.
No | Go to the next step.
14 | INSPECT DRIVE-BY-WIRE RELAY CONNECTOR FOR POOR CONNECTION • Turn the ignition switch off. • Disconnect the drive-by-wire relay. • Inspect the drive-by-wire relay connector (wiring harness-side) for poor connection (such as damaged, pulled out terminals, corrosion). • Is there any malfunction? | Yes | Repair or replace the terminal, then go to Step 22.
No | Go to the next step.
15 | INSPECT POWER SUPPLY OF DRIVE-BY-WIRE RELAY • Turn the ignition switch to the ON position (Engine off). • Measure the voltage between drive-by-wire relay terminal D (wiring harness-side) and body ground. | Yes | Go to the next step.
No | Repair or replace the wiring harness for an open circuit, then go to Step 22.
16 | INSPECT POWER SUPPLY FOR CONTROL CIRCUIT OF DRIVE-BY-WIRE RELAY • Turn the ignition switch to the ON position (Engine off). • Measure the voltage between the drive-by-wire relay terminal E (wiring harness-side) and body ground. • Is the voltage B+? | Yes | Go to the next step.
No | Repair or replace the wiring harness for an open circuit between drive-by-wire relay terminal A and main relay terminal C, then go to Step 22.
17 | INSPECT DRIVE-BY-WIRE RELAY • Inspect the drive-by-wire relay. (See RELAY INSPECTION.) • Is the drive-by-wire relay normal? | Yes | Go to the next step.
No | Replace the drive-by-wire relay, then go to Step 22.
18 | INSPECT POWER CIRCUIT FOR OPEN CIRCUIT • Turn the ignition switch off. • Inspect for continuity between drive-by-wire relay terminal C (wiring harness-side) and PCM terminal 1BF (wiring harness-side). • Is there continuity? | Yes | Go to the next step.
No | Repair or replace the wiring harness for an open circuit, then go to Step 22.
19 | INSPECT CONTROL CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between drive-by-wire relay A (wiring harness-side) and PCM terminal 1BE (wiring harness-side). | Yes | Go to the next step.
No | Repair or replace the wiring harness for an open circuit, then go to Step 22.
20 | INSPECT THROTTLE POSITION SENSOR NO.1 OUTPUT VOLTAGE • Turn the ignition switch off. • Connect the PCM connector. • Turn the ignition switch to the ON position (Engine off). • Inspect the voltage between PCM terminal 2AL and body ground. • Is the voltage 0.40-0.60 V? | Yes | Go to the next step.
No | Inspect throttle position sensor No.1 and the related circuits and terminals. (See THROTTLE POSITION (TP) SENSOR INSPECTION [L8, LF, L3].) Repair or replace if necessary, then go to Step 22.
21 | INSPECT THROTTLE POSITION SENSOR NO.2 OUTPUT VOLTAGE • Turn the ignition switch to the ON position (Engine off). • Inspect the voltage between PCM terminal 2AK and body ground. • Is the voltage 4.40-4.60 V? | Yes | Go to the next step.
No | Check throttle position sensor No.2 and the related circuits and terminals. (See THROTTLE POSITION (TP) SENSOR INSPECTION [L8, LF, L3].) Repair or replace if necessary, then go to the next step.
22 | VERIFY TROUBLESHOOTING OF DTC P2101 COMPLETED • Make sure to reconnect all disconnected connectors. • Turn the ignition switch to the ON position (Engine off). • Clear the DTC from the PCM memory using the WDS or equivalent. • Start the engine and idle it. • Turn the ignition switch off, then to the ON position (Engine off). • Is the same DTC present? | Yes | Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [L8, LF, L3].)
No | Go to the next step.
23 | VERIFY AFTER REPAIR PROCEDURE • Perform the "AFTER REPAIR PROCEDURE". (See AFTER REPAIR PROCEDURE [L8, LF, L3].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [L8, LF, L3].)
No | Troubleshooting completed.