Starting - Non-Dtc Based Diagnostics: Diagnosis RAM Cab & Chassis 3500 HD

DIAGNOSTIC TEST

1. LOCK/UNLOCK FUNCTION NOTE: For all RKE tests, the key must be out of the ignition. Does the Lock/Unlock function with the interior door switches? Yes Go To 2 . No Perform Power Lock/Unlock System diagnosis.
2. RKE FUNCTION AT 20 FEET Does the RKE Function at 20 feet? Yes Go To 3 . No Go To 4 .
3. RKE FUNCTION AT 100 FEET Does the RKE Function at 100 feet? Yes Test complete. No Replace the antenna in accordance with the Service Information.
4. WCM/WIN DTCS Does the WCM/WIN display any DTCs? Yes Perform WCM/WIN diagnosis. No Go To 5 .
5. RKE FUNCTION INSIDE VEHICLE Sit inside the vehicle. Push the Key Fob RKE Lock/Unlock buttons. Does the RKE Lock/Unlock work? Yes Go To 6 . No Go To 9 .
6. ANTENNA COAX CABLE NOT PROPERLY CONNECTED Pull on the Antenna COAX cable connector at the WCM/WIN. Did the connector come off without releasing the lock tab (not properly seated) ? Yes Connect Antenna Go To 2 . No Go To 7 .
7. VERIFY COAX CONNECTION AT WCM/WIN Pull Antenna connector off WCM/WIN. Verify no bent pins. Are there any bent pins? Yes Replace antenna. Go To 2 . No Go To 8 .
8. PINCHED WIRE Inspect the ANTENNA Lead COAX Cable for a pinched wire. Has the COAX cable been pinched or damaged? Yes Replace antenna. Go To 2 . No Perform WCM/WIN diagnostics.
9. RKE FUNCTION INSIDE VEHICLE Disconnect the Antenna COAX Cable lead connector to WCM/WIN. Sit inside the vehicle. Push the RKE Key Fob Lock/Unlock buttons. Does the RKE Lock/Unlock work? Yes Replace the antenna. No Go To 10 .
10. CHECK FOR 12 VOLTS AT WCM/WIN Connect the Antenna Lead to WCM/WIN. Disconnect the WCM/WIN harness connector. Using the appropriate wiring diagrams, check for Fused B+ at the WCM/WIN harness connector. Is Fused B+ present? Yes Perform WCM/WIN diagnostics. No Repair the appropriate circuits.

Scheme 20

1. Disconnect switch 2-wire connector (2) attached to pedal support bracket (1), under instrument panel to left of clutch pedal.
2. Check switch continuity with an ohmmeter while operating clutch pedal. Pedal Depressed - Continuity Pedal Released - No Continuity
3. If continuity is not present or always present, replace clutch master cylinder. Switch is not serviced separately.