October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Engine Controls - Tests W/Codes - Diesel Expand All (for easy ctrl-f) Collapse All Introduction Self-Diagnostic System Diagnostic Charts Diagnostic Trouble Code Charts DTC 12, No Reference Pulse (With Automatic Transmission) DTC 12, No Reference Pulse (With Manual Transmission) DTC 14, ECT Sensor - High Temperature Indicated (With A/T) DTC 14, ECT Sensor High Temperature Indicated (With M/T) DTC 15, ECT Sensor Low Temperature Indicated (With A/ T) DTC 15, ECT Sensor Low Temperature Indicated (With M/T) DTC 16, Trans. Output Speed Signal Voltage Low (A/T Only) DTC 21, Throttle Position Sensor Signal Voltage High (W/ A/T) DTC 21, Throttle Position Sensor Signal Voltage High (W/ M/T) DTC 22, Throttle Position Sensor Signal Voltage Low (W/ A/T) DTC 22, Throttle Position Sensor Signal Voltage Low (W/ M/T) DTC 23, Throttle Position Sensor MISADJUSTED DTC 24, Vehicle Speed Signal Low ("C" & "K" Series, M/T Only) DTC 24, Vehicle Speed Signal Low (With 4L60-E A/T) DTC 24, Vehicle Speed Signal Low (With 4L80-E A/T) DTC 31, Map Sensor Signal Voltage Low (W/ A/T) DTC 31, Map Sensor Signal Voltage Low (W/ M/T) DTC 32, EGR Circuit Loop Error ("C" & "K" Series) DTC 32, EGR Circuit Loop Error ("G" Series) DTC 33, Manifold Absolute Pressure Sensor Signal Voltage High DTC 51, Prom Problem DTC 52, ECM Fault DTC 53, Voltage Reference Overload (W/ A/T) DTC 53, Voltage Reference Overload (With Manual Transmission) DTC 72, Vehicle Speed Sensor Signal Loss