2004 ISUZU TF SERIES Workshop Manual

Page 393 of 4264

ISUZU TF SERIES 2004  Workshop Manual BRAKE CONTROL SYSTEM   5A-77
 
DTC C0267 (Flash Code 67) ABS Motor Shorted to Ground 
DTC C0268 (Flash Code 68) ABS Motor Shorted to Battery 
 
  
 
 RTW45AMF000201 
 
Step Action 
Value(s) Yes  No 
1

Page 394 of 4264

ISUZU TF SERIES 2004  Workshop Manual 5A-78   BRAKE CONTROL SYSTEM
 
Step Action 
Value(s) Yes  No 
4 Replace EHCU. 
Note : Check the EHCU type for specification, when 
the EHCU is replaced. 
(Specification ; 2WD model or 4WD model) 
Was

Page 395 of 4264

ISUZU TF SERIES 2004  Workshop Manual BRAKE CONTROL SYSTEM   5A-79
 
DTC C0271 (Flash Code 71) ECU Failure or Valve +B Circuit Open 
 
  
 
 RTW45AMF000201 
 
Step Action 
Value(s) Yes  No 
1 Was the “Basic Diagnostic Flow Chart” perf

Page 396 of 4264

ISUZU TF SERIES 2004  Workshop Manual 5A-80   BRAKE CONTROL SYSTEM
 
DTC C0274 (Flash Code 74) ABS Operation Long Time 
 
  
  RTW45AMF000201 
 
Step Action 
Value(s) Yes  No 
1 Was the “Basic Diagnostic Flow Chart” performed? 
-  Go

Page 397 of 4264

ISUZU TF SERIES 2004  Workshop Manual BRAKE CONTROL SYSTEM   5A-81
 
Step Action 
Value(s) Yes  No 
6  1. Ignition “OFF”. 
  2. Check the EHCU circuit for an open, short to 
ground, or short to voltage. Also, check the EHCU 
ignition

Page 398 of 4264

ISUZU TF SERIES 2004  Workshop Manual 5A-82   BRAKE CONTROL SYSTEM
 
DTC C0276 (Flash Code 76) G-Sensor Malfunction 
 
  
  RTW35AMF000301 
 
Step Action 
Value(s) Yes  No 
1 Was the “Basic Diagnostic Flow Chart” performed? 
-  Go to

Page 399 of 4264

ISUZU TF SERIES 2004  Workshop Manual BRAKE CONTROL SYSTEM   5A-83
 
Step Action 
Value(s) Yes  No 
6    1. Remove the G-sensor. 
  2. Reconnect G-sensor and EHCU 
  3. Install the Tech 2.   
  4. Ignition "ON", engine "OFF". 
  5. Observ

Page 400 of 4264

ISUZU TF SERIES 2004  Workshop Manual 5A-84   BRAKE CONTROL SYSTEM
 
DTC C0277 (Flash Code 77) Power Supply Low Input 
DTC C0278 (Flash Code 78) Power Supply High Input 
 
  
 
 RTW45AMF000201 
 
Step Action 
Value(s) Yes  No 
1 Was the