DTC Troubleshooting: P1704 (175)
DTC P1704:
 Clutch Pedal Position Switch A/B Circuit Incorrect Correlation
NOTE: Before you troubleshoot, record all freeze data and review the general troubleshooting information.
  1. Turn the ignition switch ON (II).
  1. Check CLUTCH PEDAL POSITION SWITCH A in the DATA LIST with the HDS.
Is OFF indicated?
YES -
Go to Step 3 .
NO -
Go to Step 5 .
  1. Press the clutch pedal.
  1. Check CLUTCH PEDAL POSITION SWITCH B in the DATA LIST with the HDS.
Is ON indicated?
YES -
Intermittent failure, the 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.■
NO -
Go to Step 10 .
  1. Turn the ignition switch OFF, and wait 2 minutes.
  1. Disconnect clutch pedal position switch A 2P connector.
  1. Disconnect ECM connector No. 2 (58P).
  1. 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 Step 15 .
NO -
Go to Step 9 .
Is clutch pedal position switch A OK?
YES -
Go to Step 20 .
NO -
  1. Turn the ignition switch OFF, and wait 2 minutes.
  1. Disconnect clutch pedal position switch B 3P connector.
  1. Disconnect ECM connector No. 2 (58P).
  1. Check for continuity between clutch pedal position switch B 3P connector terminal No. 2 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 Step 15 .
NO -
Go to Step 14 .
Is clutch pedal position switch B OK?
YES -
Go to Step 20 .
NO -
  1. Turn the ignition switch OFF.
  1. Reconnect all connectors.
  1. Turn the ignition switch ON (II).
  1. Reset the ECM with the HDS.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P1704 indicated?
YES -
Check for poor connections or loose terminals at clutch pedal position switch A, clutch pedal position switch B, and the ECM, then go to Step 1 .
NO -
Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■
  1. Reconnect all connectors.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P1704 indicated?
YES -
Check for poor connections or loose terminals at clutch pedal position switch A, clutch pedal position switch B, and the ECM. If the ECM was updated, substitute a known-good ECM, then recheck. If the ECM was substituted, go to Step 1 .
NO -
If the ECM was updated, troubleshooting is complete. If the ECM was substituted, replace the original ECM. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■