🚨 Diagnostic Profile
Vehicle Make: CHRYSLER
Fault Description: Open or Shorted Condition Detected in the Clutch Pedal Switch Override Relay Control Circuit.
This fault indicates the control module has detected an electrical continuity problem (open circuit or short to voltage/ground) in the circuit that commands the clutch pedal switch override relay. This relay is typically part of the clutch start/interlock system, which prevents starter engagement unless the clutch pedal is fully depressed. Verify the fault against the specific model year, transmission type, and powertrain control module (PCM/ECM/TCM) calibration before beginning repairs, as relay location and circuit routing can vary across Chrysler, Dodge, Jeep, and Ram platforms.
🚨 Repair Difficulty Tier
Tier: [Intermediate]
Relay replacement is a basic task, but isolating an open or shorted control circuit requires a digital multimeter (DMM), wiring schematic interpretation, and familiarity with module-driven relay logic. Intermittent faults may require wiggle testing and connector inspection under load.
🛠️ Resolution Steps
Step 1: Preliminary Inspection
- Review the current and historical diagnostic trouble codes (DTCs) and freeze frame data with a scan tool capable of Chrysler-specific enhanced PID access.
- Confirm battery state of charge (minimum 12.4V resting) and check for other active body or powertrain codes that could affect relay control, including starter relay or TIPM (Totally Integrated Power Module) codes.
- Visually inspect the clutch pedal switch harness, relay connector, and ground points for corrosion, chafing, or loose terminals, paying close attention to the harness routing near the pedal bracket and firewall grommet.
- Inspect the fuse and relay box for blown fuses, backed-out relays, or heat damage. On most Chrysler/Dodge/Jeep manual transmission platforms, this relay is integrated into or controlled by the Totally Integrated Power Module (TIPM) or a standalone relay in the underhood power distribution center; confirm exact location using the vehicle-specific service manual fuse/relay diagram before proceeding.
- Check for aftermarket accessories, recent wiring repairs, remote start installations, or pedal assembly modifications that could interfere with the override circuit.
Step 2: Diagnostic Verification
- Consult the factory wiring diagram for the clutch pedal switch override circuit and identify the control circuit terminals at the relay and the controlling module (typically PCM or TIPM depending on platform).
- With the key on engine off (KOEO), verify reference voltage is present at the relay control circuit using a DMM referenced to a known good chassis ground; expect switched battery voltage or a module-driven low-reference signal depending on relay design — compare readings to a documented known-good value in the factory service manual rather than assuming a fixed figure.
- Measure circuit continuity (resistance should read near 0 ohms) from the module connector to the relay connector, with the harness disconnected at both ends, to test for an open circuit.
- Test the control circuit for shorts to voltage (key on, circuit should read 0V with harness disconnected) and shorts to ground (should read open/infinite resistance to ground with harness disconnected) using the DMM in both voltage and resistance modes.
- Check clutch pedal switch operation through scan tool live data while cycling the pedal; the switch state should toggle cleanly between open and closed with no erratic or stuck signal as the pedal is depressed and released.
- Perform a relay coil and contact test using a bench test or substitution with a known-good relay of identical part number and amperage rating, per factory service information relay test procedures.
- Use wiggle testing on the harness, connectors, and pedal switch assembly while monitoring the DMM or scan tool live data to isolate intermittent opens or shorts.
Step 3: Resolution & Reset Process
- Repair any open, short, or damaged connector identified in the circuit using factory-approved solder-and-heat-shrink or crimp-and-seal splice methods; avoid simple twist-and-tape repairs on this safety interlock circuit.
- Replace the clutch pedal switch override relay only if it fails coil resistance or contact continuity testing; use the correct OEM or OEM-equivalent relay matching the original part number, amperage, and pin configuration stamped on the relay housing.
- Replace the clutch pedal switch only if verified faulty through live data and continuity testing, and the wiring harness is confirmed good.
- Clear all stored DTCs with a scan tool and verify no pending codes return after a key cycle.
- Perform a road test or functional test of clutch pedal switch operation and the starter interlock function, confirming the vehicle will not crank with the clutch pedal released and cranks normally when the pedal is fully depressed.
- Recheck DTC status after a complete drive cycle (multiple cold starts and clutch engagements) to confirm the repair holds and no intermittent fault returns.
📦 Parts, Labor, and Budget Estimates
Required Components/Software:
- Clutch pedal switch override relay (OEM or OEM-equivalent, matched to original part number)
- Clutch pedal switch (only if verified faulty through testing)
- Connector pins, terminals, wire repair kit, and heat-shrink splice materials (quantity dependent on extent of harness damage found)
- Scan tool with Chrysler-specific software (e.g., wiTECH or equivalent aftermarket scan tool with enhanced Chrysler PID/bi-directional support)
- Digital multimeter, breakout box (if available), and factory wiring diagram access (subscription-based service information such as TechAuthority)
Average Component Price:
- Clutch pedal switch override relay: $15–$45
- Clutch pedal switch: $25–$90
- Wiring and connector repair materials (pigtail/terminal kit): $10–$60
- Estimated total parts cost: $50–$195 (higher end if both relay and switch require replacement plus harness repair)
Estimated Labor Hours:
- Preliminary inspection and DTC review: 0.3–0.5 hour
- Diagnostic verification and circuit testing: 0.8–1.5 hours
- Repair, relay or switch replacement, and reset: 0.5–1.2 hours (relay swap is quick; pedal switch replacement or harness splice repair takes longer)
- Verification road test and confirmation: 0.3–0.5 hour
- Total estimated labor: 1.9–3.7 hours, typically billed at shop labor rate ($100–$180/hour depending on region and dealer vs. independent shop), for an estimated total labor cost range of $190–$665