DTC Troubleshooting: P1704 (175-2)

DTC P1704:  Clutch Pedal Position Switch A/B Circuit Incorrect Correlation

NOTE:

1.Turn the ignition switch ON (II).

2.Check CLUTCH PEDAL POSITION SWITCH A in the DATA LIST with the HDS.

Is OFF indicated?


YES - Go to 3.


NO - Go to 5.


3.Press the clutch pedal.

4.Check CLUTCH PEDAL POSITION SWITCH B in the DATA LIST with the HDS.

Is ON indicated?


YES - Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at clutch pedal position switch A, clutch pedal position switch B and the ECM.n


NO - Go to 10.


5.Turn the ignition switch OFF, and wait 30 seconds.

6.Disconnect clutch pedal position switch A 2P connector.

7.Disconnect ECM connector No. 2 (58P).

8.Check for continuity between clutch pedal position switch A 2P connector terminal No. 1 and body ground.

 

Is there continuity?


YES - Repair short in the wire between clutch pedal position switch A and ECM connector No. 2 terminal No. 40, then go to 15.


NO - Go to 9.


9.Check clutch pedal position switch A.

Is clutch pedal position switch A OK?


YES - Go to 20.


NO - Adjust or replace clutch pedal position switch A, then go to 15.


10.Turn the ignition switch OFF, and wait 30 seconds.

11.Disconnect clutch pedal position switch B 2P* (4P)** connector.

12.Disconnect ECM connector No. 2 (58P).

13.Check for continuity between clutch pedal position switch B 2P* (4P)** connector terminal No. 1* (No. 3)** and body ground.

 

 

Is there continuity?


YES - Repair short in the wire between clutch pedal position switch B and ECM connector No. 2 terminal No. 28, then go to 15.


NO - Go to 14.


14.Check clutch pedal position switch B.

Is clutch pedal position switch B OK?


YES - Go to 20.


NO - Adjust or replace clutch pedal position switch B, then go to 15.

15.Turn the ignition switch OFF.

16.Reconnect all connectors.

17.Turn the ignition switch ON (II).

18.Reset the ECM with the HDS.

19.Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?


YES - If DTC P1704 is indicated, check for poor connections or loose terminals at clutch pedal position switch A, clutch pedal position switch B and the ECM, then go to 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.


NO - Troubleshooting is complete.n


20.Update the ECM if it does not have the latest software, or substitute a known-good ECM.

21.Check for Temporary DTCs or DTCs with the HDS.

Are any Temporary DTCs or DTCs indicated?


YES - If DTC P1704 is indicated, check for poor connections or loose terminals at clutch pedal position switch A, clutch pedal position switch B and the ECM, then go to 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.


NO - If the ECM was updated, troubleshooting is complete. If the ECM was substituted, replace the original ECM.n