GM Trouble Codes

12 Diagnostic mode / ECM functioning No distributor pulses
13 Oxygen sensor signal problem or loss
14 Coolant sensor - high temperature fault
15 Coolant sensor - low temperature fault
16 System over voltage - over 17.1 volts
16 DIS fault
17 Crank signal circuit shorted (or bad ECM)
18 Crank signal circuit open (or bad ECM)
18 Cam/crank sensor synchronization error (DIS)
19 Fuel pump circuit shorted
19 Crankshaft position sensor fault (1988-1991)
20 Fuel pump voltage high, circuit open
21 TPS voltage high
22 TPS voltage low
23 M/C solenoid fault (Carbureted)
23 MAT sensor Low temperature fault (EFI/TPI/SFI)
23 EST bypass circuit fault (Cadillac DFI)
24 VSS loss of signal
25 MAT sensor High temperature fault (EFI/TPI/SFI)
25 Modulated displacement failure (1981 Cadillac V8-6-4)
25 EST circuit fault (Cadillac HT4100)
26 Quad driver circuit (3.8L)
26 Throttle switch circuit shorted
27 Throttle switch circuit open
27 Gear switch diagnosis
28 Gear switch diagnosis
28 PSM check (4L80-E Transmissions)
29 Gear switch diagnosis
30 ISC fault (Cadillac TBI)
30 RPM error (Cadillac MFI)
31 Turbo over-boost fault (Turbo only)
31 Park/Neutral switch fault (3.3L V-6)
31 MAT sensor circuit fault (Cadillac DFI)
31 Canister purge solenoid fault
31 Camshaft sensor circuit fault
31 EGR circuit fault (1988-1991 TBI)
31 MAP sensor circuit shorted
32 BARO sensor circuit shorted (Carbureted)
32 EGR circuit fault (EFI/TBI)
32 MAP sensor circuit open
33 MAP sensor voltage low - pressure low/vacuum high
33 MAF signal low - flow high (EFI/TPI/SFI)
34 MAP sensor voltage high - pressure high/vacuum low
34 MAF signal high - flow low (EFI/TPI/SFI)
35 ISC fault (Carbureted)
35 IAC fault (EFI/TPI/SFI)
35 BARO sensor circuit shorted (Cadillac DFI)
36 MAF sensor burn-off circuit failure
36 DIS fault
36 Transaxle shift control (1991+)
36 Closed throttle shift control (1991+)
36 BARO sensor circuit shorted (Cadillac DFI)
37 MAT sensor voltage low or shorted (Cadillac HT4100)
37 MAT sensor high temperature (1984-86)
38 MAT sensor voltage high or open (Cadillac HT4100)
38 MAT sensor low temperature (1984-86)
38 Brake input circuit failed (brake light switch)
39 TCC failure
40 Power steering pressure switch fault
41 EST circuit failure - no distributer pulses
41 Camshaft position sensor failure
41 Cylinder select error
42 EST circuit grounded (HEI module failure)
42 Front oxygen sensor lean error (Cadillac MFI)
43 ESC control failure, spark retard too long
43 TPS out of adjustment
43 Knock sensor signal
43 Front oxygen sensor rich error (Cadillac MFI)
44 Oxygen sensor lean error
45 Oxygen sensor rich error
46 Power steering pressure switch fault (4 cylinder)
46 VATS alert
46 Right/left fuel balance error (Cadillac DFI)
47 ECM failure
47 A/C clutch and Cruise Control circuit
48 Misfire diagnosis
48 EGR fault (Cadillac)
49 MAP sensor low error
51 ECM, PROM, or MEM-CAL failure
52 ECM or CALPAK failure
53 System over voltage - over 17.1 volts
53 EGR sensor fault, improper EGR vacuum (Carbureted)
53 Distributor signal fault (Cadillac HT4100)
53 VATS alert (5.0L TBI)
54 Fuel pump voltage low (below 2 volts) (EFI/TPI/SFI)
54 M/C solenoid failure (Carbureted)
55 ECM failure (poor connections or failed ECM)
55 Oxygen sensor failure
55 Fuel lean monitor error (Corvette 5.7L P)
56 Vacuum sensor circuit (Corvette Port throttle system)
56 Coolant level low
56 Quad driver B circuit (3.8L)
56 VATS alert (Cadillac)
58 PASS key fuel enable circuit
58 VATS alert
60 Transmission not in drive (Cadillac)
61 Oxygen sensor failure
61 Cruise Control vent valve solenoid fault (3.8L)
61 Secondary part throttle valve (Corvette Port throttle system)
62 Transaxle gear switch (3.1L V6, Quad 4)
62 Oil temperature sensor fault (Corvette 5.7L P)
62 Cruise Control vacuum circuit fault (3.8L)
63 MAP sensor voltage high, low vacuum/open circuit (2.8L)
63 EGR flow check (3.8L)
63 Right side oxygen sensor open error (Corvette 5.7L P)
64 MAP sensor voltage low - high vacuum/short circuit (2.8L)
64 EGR flow check (3.8L)
64 Right side oxygen sensor lean error (Corvette 5.7L P)
65 Fuel injection circuit fault (Quad 4)
65 EGR flow check (3.8L)
65 Cruise Control servo position sensor fault (3.8L)
65 Right side oxygen sensor rich error (Corvette 5.7L P)
66 A/C pressure switch low pressure (1991 +)
66 ECM fault
67 Cruise Control switch failure
67 A/C pressure switch low pressure (Chevrolet)
68 A/C relay circuit fault (Chevrolet)
68 Cruise Control system fault
69 A/C clutch circuit fault (Chevrolet)
69 A/C pressure switch high pressure
70 Intermittent TPS signal (Cadillac)
71 Intermittent MAP sensor signal (Cadillac)
72 Gear selector switch fault (Chevrolet)
73 Intermittent coolant sensor signal (Cadillac)
74 Intermittent MAT sensor signal (Cadillac)
75 Intermittent VSS signal (Cadillac)
80 TPS idle learn mode (Cadillac 4.6)
80 Fuel system rich (Cadillac)
81 Camshaft position sensor reference fault (Cadillac)
82 Camshaft position reference signal high (Cadillac)
83 *Reserved
84 *Reserved
85 Idle throttle angle too high (Cadillac)
85 TBI service required (Cadillac)
88 ECM fault (‘85 & up)
95 Engine stall detected (Cadillac)
99 Power management, Cruise Control fault (Cadillac)
107 PCM /BCM data link defect
108 PROM checksum error
109 PCM memory reset (Cadillac)
110 Generator ‘L’ terminal circuit fault (Cadillac)
112 EEPROM failure (Cadillac)
131/132 Knock sensor failure (Cadillac)

A/C Air Conditioning MAF Mass Air Flow sensor
BARO Barometric sensor (Carbureted engine MAP) MAP Manifold Absolute Pressure sensor
BCM Basic Control Module MAT Manifold Air Temperature sensor
CALPAK Calibration Package (early PROM substitute) MEM-CAL Memory Calibration module (early PROM substitute)
CTS Coolant Temperature Sensor MFI Multi-port Fuel Injection
DFI Digital Fuel Injection M/C Mixture Control servo
DIS Distributorless Ignition System PCM Programmable Control Module
ECM Electronic Engine Control Module PROM Programmable Read-Only Memory module
EEPROM Electrically-Erasable Programmable Read-Only Memory module PSM Pressure Switch Manifold
EFI Electronic Fuel Injection SFI Sequential multi-pot Fuel Injection
EGR Exhaust Gas Recirculation valve TBI Throttle Body Injection
ESC Electronic Spark Control (HEI ignition) TCC Torque Converter Clutch
EST Electronic Spark Timing control TPI Tuned-Port Induction
HEI High Energy Ignition distributor module TPS Throttle Position Sensor
IAC Idle Air Control VATS Vehicle Anti-Theft System
ISC Idle Speed Control VSS Vehicle Speed Sensor

Brochure: 1986 Oldsmobile Toronado 20th Annyversary Edition

Brochure: Oldsmobile Toronado 1987

Link: 4th Gen. Toronado in Movies

http://www.imcdb.org/vehicles.php?resultsStyle=asImages&yearFrom=1986&yearTo=1992&makeMatch=2&make=Oldsmobile&modelMatch=1&model=Toronado&modelInclModel=on&modelInclChassis=on&origin=&madein=&madefor=&role=

Some Photos of my Toronado

Video: MotorWeek '90 - Oldsmobile Toronado Troféo Road Test

Video: some Oldsmobile Toronado Commercials

Brochure: Oldsmobile Toronado 1986

Oldsmobile Toronado, Fourth generation, 1986–1992

The fourth and, as it proved, final generation Toronado was on the market from 1986 to 1992. It was even smaller, lost its body-on-frame construction in favor of a unibody platform, and was the first Toronado since 1969 to feature hidden headlights.
V8 engines were gone, with the fuel-injected version of the Buick 231 cu in (3.8 L) V6, now the only powerplant available. A good, powerful engine, it was well-suited to this much smaller, lighter car.
Inside, a new digital instrument panel and optional voice alert system were employed and the same luxury trappings were offered as standard equipment and options as before. Standard seating was a cloth 60/40 bench with center armrest. For the first time since 1970, Strato bucket seats were offered as an option, and they included a full-length center console with a horseshoe-like "basket handle" gear shift similar to that found in some 1960s and 1970s Buicks and Chevrolets. Upholstery choices included cloth or leather.
Unfortunately, GM's timing with this latest downsizing proved to be off the mark. Gasoline prices had dropped dramatically — below $1.00 per gallon in many parts of the U.S. — by the fall of 1985, against corporate soothsayers' predictions of $3.00 and up. Buyers, faced with GM's spate of stubby new choices across the board, chose instead to "buy big" in 1986, with cars like the Lincoln Town Car and Chrysler's long-in-the-tooth, V8-powered Fifth Avenue setting sales records for the '86 model year.
Sadly, along with its shrunken sisters, the Eldorado and Riviera, the Toronado suffered a serious sales decline which would never be reversed. Critics blamed the downsizing, as well as "cookie cutter" styling that looked too much like the cheaper, less-luxurious compacts at GM, notably the Oldsmobile Calais and Pontiac Grand Am.
In mid-1987, Oldsmobile attempted to bolster sagging Toronado sales by introducing a sportier model called the Troféo, which boasted standard leather bucket seats, faux dual exhaust, more-aggressive styling, and a stiffer suspension (the highly-regarded corporate FE3 package, with retuned shocks, struts and other components).
For 1988, the Troféo was no longer badged externally as a Toronado. Other changes for the Troféo included new seats and monochromatic paint; both Toro and Troféo benefitted from larger climate control buttons and rear three-point seatbelts. Additionally, power increased with the introduction of the new Buick 3800 LN3 V6 engine. Wire wheelcovers were deleted from the options sheet. Other changes were minor and mainly cosmetic.
The 1989 Troféo could be ordered with the Visual Information Center: a dash mounted touch-screen CRT that controlled the vehicle's thermostat and radio and also supplied advanced instrumentation such as a trip computer. The following is a link to pictures of various CRT screens [5]. The VIC could also serve as the interface to an in-car hands-free cell phone. Troféo also received standard anti-lock brakes and a new steering wheel that featured buttons for radio and climate controls. Toronados now had standard bucket seats with console, although the split-bench seat was still offered as an option
1990 saw Oldsmobile literally and figuratively going to great lengths to revive Toronado and Troféo sales. The hood was the only carryover piece of exterior sheetmetal as Olds designers completely redesigned the body, particularly in the rear, increasing the overall length by about 1-foot (30 cm). While the redesign did not increase passenger space, it did answer criticism of the car's trunk space. Toronado/Troféo owners could easily carry enough luggage for a long vacation or four golf bags with room to spare.
On the safety front, for the first time since 1976, an airbag was installed, this time for the driver only, and it was standard equipment; it was fitted in a new steering wheel shared by both models. The new steering wheel framed the driver's view of new analog gauges and information center, as well. The bulky owner's manual for the '90 Toro and Troféo had more room, as well, thanks to a larger glovebox.
Unfortunately, the new look did not help stem the tide of sagging sales. Even so, Olds was not ready to throw in the towel just yet. The 1991 models added a couple of new features at no extra cost: previously optional remote keyless entry and anti-lock brakes were made standard across the board. The engine got another small horsepower bump. Troféos got a new interior choice over the standard leather upholstery — Ultrasuede — which must have sold poorly, as it is extremely rare today. The moonroof option no longer required bucket seats to be ordered.
The '92 models debuted with a new old option: wire wheelcover fans could indulge themselves on Toronados for the first time since 1987. Troféos got a stiffer standard suspension (the formerly-optional FE3 package).
Although the Toronado and Troféo were, by this time, as good as GM's designers and engineers could make them, buyers were not buying them since the "SUV craze" was in its infancy and personal luxury coupes, in general, were declining in sales. Oldsmobile management realized this, and decided to cancel the Toronado and Troféo at the end of the 1992 model year. They were replaced in the lineup by the Aurora sports sedan which debuted in early 1994 as a 1995 model.
The last Toronado rolled off the assembly line on May 28, 1992

Source: Wikipedia