Page 385 of 4264
BRAKE CONTROL SYSTEM 5A-69
DTC C0241 (Flash Code 41) Front Right Isolation Solenoid Circuit Open or
Shorted to Ground
DTC C0242 (Flash Code 42) Front Right Dump Solenoid Circuit Open or
Shorted to Ground
DTC C0243 (Flash Code 43) Front Right Isolation Solenoid Circuit Shorted to
Battery
DTC C0244 (Flash Code 44) Front Right Dump Solenoid Circuit Shorted to
Battery
RTW45AMF000201
Step Action
Value(s) Yes No
1 Was the “Basic Diagnostic Flow Chart” performed?
- Go to Step 2 Go to Basic
Diagnostic
Flow Chart
2 1. Ignition “OFF”.
2. Check the EHCU circuit for an open, short to
ground, or short to voltage. Also, check the EHCU
ignition feed circuit for an open or short to ground
and the EHCU ground circuit for an open or short to
voltage.
3. If a problem is found, repair as necessary.
Was a problem found?
- Verify repair Go to Step 3
Page 386 of 4264
5A-70 BRAKE CONTROL SYSTEM
Step Action
Value(s) Yes No
3 1. Ignition “ON,” engine “OFF.”
2. Select “Display DTCs” with the Tech 2.
Note: Perform the various tests (actuator test, test
run, brake test, etc.) then observe the DTC with a
Tech2.
Are any DTCs stored? - Go to Step 4 Verify repair
4 Replace EHCU.
Note : Check the EHCU type for specification, when
the EHCU is replaced.
(Specification ; 2WD model or 4WD model)
Was the action complete? - Verify repair -
Page 387 of 4264
BRAKE CONTROL SYSTEM 5A-71
DTC C0245 (Flash Code 45) Front Left Isolation Solenoid Circuit Open or
Shorted to Ground
DTC C0246 (Flash Code 46) Front Left Dump Solenoid Circuit Open or
Shorted to Ground
DTC C0247 (Flash Code 47) Front Left Isolation Solenoid Circuit Shorted to
Battery
DTC C0248 (Flash Code 48) Front Left Dump Solenoid Circuit Shorted to
Battery
RTW45AMF000201
Step Action
Value(s) Yes No
1 Was the “Basic Diagnostic Flow Chart” performed?
- Go to Step 2 Go to Basic
Diagnostic
Flow Chart
2 1. Ignition “OFF”.
2. Check the EHCU circuit for an open, short to
ground, or short to voltage. Also, check the EHCU
ignition feed circuit for an open or short to ground
and the EHCU ground circuit for an open or short to
voltage.
3. If a problem is found, repair as necessary.
Was a problem found?
- Verify repair Go to Step 3
Page 388 of 4264
5A-72 BRAKE CONTROL SYSTEM
Step Action
Value(s) Yes No
3 1. Ignition “ON,” engine “OFF.”
2. Select “Display DTCs” with the Tech 2.
Note: Perform the various tests (actuator test, test
run, brake test, etc.) then observe the DTC with a
Tech2.
Are any DTCs stored? - Go to Step 4 Verify repair
4 Replace EHCU.
Note : Check the EHCU type for specification, when
the EHCU is replaced.
(Specification ; 2WD model or 4WD model)
Was the action complete? - Verify repair -
Page 389 of 4264
BRAKE CONTROL SYSTEM 5A-73
DTC C0251 (Flash Code 51) Rear Isolation Solenoid Circuit Open or Shorted
to Ground
DTC C0252 (Flash Code 52) Rear Dump Solenoid Circuit Open or Shorted to
Ground
DTC C0253 (Flash Code 53) Rear Isolation Solenoid Circuit Shorted to Battery
DTC C0254 (Flash Code 54) Rear Dump Solenoid Circuit Shorted to Battery
RTW45AMF000201
Step Action
Value(s) Yes No
1 Was the “Basic Diagnostic Flow Chart” performed?
- Go to Step 2 Go to Basic
Diagnostic
Flow Chart
2 1. Ignition “OFF”.
2. Check the EHCU circuit for an open, short to
ground, or short to voltage. Also, check the EHCU
ignition feed circuit for an open or short to ground
and the EHCU ground circuit for an open or short to
voltage.
3. If a problem is found, repair as necessary.
Was a problem found?
- Verify repair Go to Step 3
Page 390 of 4264
5A-74 BRAKE CONTROL SYSTEM
Step Action
Value(s) Yes No
3 1. Ignition “ON,” engine “OFF.”
2. Select “Display DTCs” with the Tech 2.
Note: Perform the various tests (actuator test, test
run, brake test, etc.) then observe the DTC with a
Tech2.
Are any DTCs stored? - Go to Step 4 Verify repair
4 Replace EHCU.
Note : Check the EHCU type for specification, when
the EHCU is replaced.
(Specification ; 2WD model or 4WD model)
Was the action complete? - Verify repair -
Page 391 of 4264
BRAKE CONTROL SYSTEM 5A-75
DTC C0265 (Flash Code 65) Fail Safe Relay (FSR) Shorted to Ground
DTC C0266 (Flash Code 66) Fail Safe Relay (FSR) Shorted to Battery
RTW45AMF000201
Step Action
Value(s) Yes No
1 Was the “Basic Diagnostic Flow Chart” performed?
- Go to Step 2 Go to Basic
Diagnostic
Flow Chart
2 1. Ignition “OFF”.
2. Check the EHCU circuit for an open, short to
ground, or short to voltage. Also, check the EHCU
ignition feed circuit for an open or short to ground
and the EHCU ground circuit for an open or short to
voltage.
3. If a problem is found, repair as necessary.
Was a problem found?
- Verify repair Go to Step 3
3 1. Ignition “ON,” engine “OFF.”
2. Select “Display DTCs” with the Tech 2.
Note: Perform the various tests (actuator test, test
run, brake test, etc.) then observe the DTC with a
Tech2.
Are any DTCs stored? - Go to Step 4 Verify repair
Page 392 of 4264
5A-76 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 the action complete? - Verify repair -