Code Identification Tables

WARNING: This page is about a different car, the 1990 Cadillac Fleetwood and 1990 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

ECM TROUBLE CODES

Code

Circuit Affected

E12 ⁽¹⁾

No distributor signal

E13 ⁽¹⁾

Oxygen sensor not ready

E14 ⁽¹⁾

Shorted coolant sensor

E15 ⁽¹⁾

Open coolant sensor circuit

E16 ⁽²⁾

Generator voltage out of range

E19 ⁽²⁾

Shorted fuel pump circuit

E20 ⁽²⁾

Open fuel pump circuit

E21 ⁽¹⁾

Shorted Throttle Position Sensor (TPS) circuit

E22 ⁽¹⁾

Open TPS circuit

E23 ⁽¹⁾

Electronic Spark Timing (EST)/by-pass circuit problem

E24 ⁽¹⁾

VSS circuit protection

E26 ⁽¹⁾

Shorted throttle switch circuit

E27 ⁽¹⁾

Open throttle switch circuit

E28 ⁽¹⁾

Open 3rd or 4th gear pressure switch

E30 ⁽¹⁾

ISC RPM error to great

E31 ⁽¹⁾

Shorted MAP sensor circuit

E32 ⁽¹⁾

Open MAP sensor circuit

E34 ⁽¹⁾

MAP sensor signal too high

E37 ⁽¹⁾

Shorted MAT sensor circuit

E38 ⁽¹⁾

Open MAT sensor circuit

E39 ⁽¹⁾

VCC engagement problem electrical check

E40 ⁽¹⁾

Power steering Pressure Circuit

E41 ⁽¹⁾

No cam sensor signal

E44 ⁽¹⁾

Oxygen sensor signal lean

E45 ⁽¹⁾

Oxygen sensor signal rich

E47 ⁽¹⁾

ECM to BCM data problem

E48 ⁽¹⁾

EGR system problem

E49 ⁽³⁾

Air management system problem

E51 ⁽³⁾

Replace MEM-CAL

E52 ⁽³⁾

ECM memory reset indicator

E53 ⁽³⁾

Distributor signal interrupt

E55 ⁽³⁾

TPS misadjusted

E58 ⁽¹⁾

PASS key control problem

E60 ⁽¹⁾

Cruise-transmission not in Drive

E61 ⁽³⁾

Cruise vent solenoid circuit problem

E62 ⁽³⁾

Cruise vacuum solenoid circuit

E63 ⁽¹⁾

Cruise verse vehicle speed difference

E64 ⁽¹⁾

Cruise-vehicle acceleration out of range

E65 ⁽¹⁾

Cruise servo position sensor failure

E66 ⁽¹⁾

Cruise-engine RPM too high

E67 ⁽³⁾

Set/coast-resume/accel switch short

E68 ⁽³⁾

Cruise control command problem

E74 ⁽³⁾

MAT signal interrupt

E75 ⁽³⁾

VSS signal interrupt

E85 ⁽¹⁾

Throttle body service required

E90 ⁽²⁾

VCC brake switch input problem

E91 ⁽²⁾

Park neutral switch problem

E92 ⁽²⁾

Heated W/S request problem

E96 ⁽³⁾

Torque converter overstress

E97 ⁽³⁾

P/N to D/R engagement problem

E98 ⁽³⁾

P/N to D/R ISC engaged problem

E99 ⁽¹⁾

Cruise servo applied not in cruise

⁽¹⁾	This fault turns on SERVICE ENGINE SOON light.

⁽²⁾	This fault turns on SERVICE VEHICLE SOON light.

⁽³⁾	This fault does not turn on any light.

BCM TROUBLE CODES

Code

Circuit Affected

F10

Outside temperature sensor circuit

F11 ⁽¹⁾

A/C high side temperature sensor circuit

F12 ⁽²⁾

A/C low side temperature sensor circuit

F13

In-car temperature sensor circuit

F30

Electronic Climate Control (ECC) panel-to-BCM data circuit

F31

Fuel Data Control (FDC)-to-BCM data circuit

F32

ECM-to-BCM data circuit

F40

Air mix door problem

F46

Low refrigerant warning

F47 ⁽³⁾

Low refrigerant condition

F48 ⁽³⁾

Low refrigerant pressure

F49

High temperature clutch disengage

F51

BCM PROM error

⁽¹⁾	Turns on cooling fans when A/C clutch is engaged.

⁽²⁾	Disengages A/C clutch.

⁽³⁾	Switches from AUTO to ECON.