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Toro Gen IV Diagnostic codes BCM, CRT & DID

I have listed a bunch of BCM/CRT fault codes below (1991).

These are all "B" codes:

Code

Description

110

Outside temperature sensor circuit

111

A/C high side temp circuit

112

A/C low side temp circuit

113

In car temp sensor circuit

115

Sunload sensor circuit

119

Twilight photocell circuit

120

Twilight pot delay circuit

121

Twilight enable circuit

122

Panel dimming potentiometer

123

Panel lamp switch

127

Gear selector circuit

132

Oil pressure sensor circuit

140

Phone system fault

332

Compass data lost

333

Air bag data lost

334

ECM/PCM data lost

335

ECCP or CRTC/DID data lost

336

IPC data lost

337

HVAC data lost

 

If you have all the 33x (332 - 337) codes consider a serial data highway fault. You can't enter diagnostics if all of these codes are current.

410

Charging system circuit fault

411

Charge voltage low

412

Charge voltage high

440

Air mix door problem

446

A/C fault, low side temp drops too quickly (more refrigerant needed?)

447

A/C fault, low side temp drops much too quickly (this will disengage the a/c, you need to clear codes before it will start again)

448

Low refrigerant pressure switch open for too long

449

High side temp too high

450

Coolant too hot

552

BCM keep alive memory error (not a fault if you have disconnected the battery)

556

Odometer EEPROM error

 

CRT and DID error codes

Code

Description

C710

CRTC/DIDC to CRTM/DIDM communication error

 

Submitted by: Jonathan

Jan/06/2000