On my buddy's calculator it takes is the display freak out (solar panel only) till you touch the solar panel first your RH and LH at the same time till then see 388E on the screen then press the multiply ✖ and the addition button symotaniously (at the same time) then wait till it warms up till you see -000- and it'll be ready in 3 days =72hrs the numbers will be from 0-388 I told that to my buddy Tristan I work with him he is like a computer head and music player and radio station-ly legendary good pal

@amanda Thanks! @RTdeluxe No... been busy with other things! I'll probably pick it up again soon...

Do you recall what brand of radio adapter kit you have for your Roadmaster? I know this video was made almost a decade ago... My radio just bought the farm and I found a single din adapter from a 94 (radio below a/c) dashboard. Hope it works but if you could remember it'd save a lot of troubleshooting in the future for me. Thanks man and I'm about to run some diagnostics right now!

did you ever find any more info about the diagnostic numbers?

CODE DESCRIPTIONS: This section is used to determine the most likely cause of a trouble code that is stored in the ECM. The SERVICE ENGINE SOON or CHECK ENGINE light will only be ON if the malfunction exist under the conditions listed. If the malfunction clears, the light will go out and the code will then be stored. Any codes stored will be cleared if no problem reoccurs within 50 engine starts. .................... CODE AND CIRCUIT POSSIBLE CAUSE CODE 13 Indicates that the oxygen sensor circuit OPEN Oxygen Sensor (O2) circuit or sensor was open for one minute while off idle. .................... CODE 14 Sets if the sensor or signal line are Coolant Sensor (CTS) grounded for 3 seconds. HIGH Temperature indication .................... CODE 15 Sets if the sensor, wires, or connections Coolant Sensor (CTS) are open for 3 seconds. LOW Temperature indication .................... CODE 21 TPS voltage of more than 2.5 volts for Throttle Position Sensor (TPS) 3 seconds at an engine speed less than 1200 rpm. HIGH Voltage Signal .................... CODE 22 A shorted to ground or open signal circuit Throttle Position Sensor (TPS) will set code in 3 seconds. LOW Voltage Signal .................... CODE 23 Sets if the sensor, wires, or connections Manifold Air Temperature Sensor (MAT) are open for 3 seconds. or Intake Air Temperature (IAT) LOW Temperature indication .................... CODE 24 No vehicle speed present during road Vehicle Speed Sensor (VSS) load deceleration. NO Vehicle Speed Indication .................... CODE 25 Sets if the sensor or signal line are Manifold Air Temperature Sensor (MAT) grounded for 3 seconds. or Intake Air Temperature (IAT) HIGH Temperature indication .................... CODE 32 Vacuum switch shorted to ground on start up Exhaust Gas Recirculation (EGR) OR Switch not closed after the ECM has commanded EGR for a specified period of time. OR EGR solenoid circuit open for a specified period of time. .................... CODE 33 MAP sensor output too high for 5 seconds Manifold Absolute Pressure (MAP) or an open circuit. LOW Vacuum .................... CODE 34 Low or no output from sensor with engine running. Manifold Absolute Pressure (MAP) HIGH Vacuum .................... CODE 35 IAC error. Idle Air Control (IAC) .................... CODE 42 ECM has seen an open or grounded EST or Bypass circuit. Electronic Spark Timing (EST) .................... CODE 43 Signal to the ECM has remained low for too long Electronic Spark Control (ESC) or the system has failed a functional check. .................... CODE 44 If voltage to oxygen sensor remains BELOW .2v LEAN Exhaust Indication. for more than 20 seconds, code is set. .................... CODE 45 If voltage to oxygen sensor remains ABOVE .7v RICH Exhaust Indication. for more than 1 minute, code is set. .................... CODE 51 Faulty MEM-CAL, PROM, or ECM. .................... CODE 52 Faulty or missing CAL-PACK. .................... CODE 53 System overvoltage. Indication of a faulty alternator or regulator. Camaro/Firebird uses a Code 53 for Vehicle Anti-Theft System (VATS). .................... CODE 54 Sets when the fuel pump voltage is less than LOW Voltage To Fuel Pump. 2 volts when reference pulses are being received. .................... CODE 55 Faulty ECM.

Please say you found the codes And if so please post it

Please someone say they have the codes by now

You obviously don't have a clue what your doing. You have to select which ecm to scan