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Automatic Transmission - Automatic Transaxle/transmission External Controls: Diagnosis Ford Fiesta Mk6

Automatic Trans 1 illustration ~209 words

Inspection and Verification

  1. Verify the customer concern by operating the system.
  2. Visually inspect for obvious signs of mechanical or electrical damage.
  3. If an obvious cause for an observed or reported concern is found, correct the cause before proceeding to the next step.
  4. If the concern is not visually evident, verify the symptom. Go to «SYMPTOM CHART - EXTERNAL CONTROLS»(ref-382412-S34565581922011012300000) or go to «SYMPTOM CHART - NVH»(ref-382412-S30260324112011012300000) .

Visual Inspection Chart

MechanicalElectrical
Selector lever cable Manual control lever Selector lever or selector lever knobCentral Junction Box (CJB) fuse 18 (10A) CJB fuse 22 (7.5A) Connections Wiring harness Brake Pedal Position (BPP) switch Brake Shift Interlock Actuator (BSIA) Transmission Control Switch (TCS)

VISUAL INSPECTION CHART

DTC Chart

DTCComponentDescriptionConditionSymptomAction
B2572Brake Shift InterlockBrake Shift Interlock Output Circuit FailureThe associated circuitry connected to the Central Junction Box (CJB) or fuse, or the CJB itself may have an issue causing a brake shift interlock concern.Brake shift interlock is inoperative or does not operate correctly.Go to PINPOINT TEST A .

DTC DESCRIPTION CHART

Symptom Chart - External Controls

ConditionPossible SourcesAction
Brake shift interlock system does not release/lock correctlyCircuitry open/shorted Central Junction Box (CJB) fuse 18 (10A) Brake Pedal Position (BPP) switchGo to PINPOINT TEST A .
Brake Shift Interlock Actuator (BSIA)INSTALL a new selector lever assembly. Refer to SELECTOR LEVER in this information.
Transmission Range (TR) sensorDIAGNOSE and REPAIR all TR sensor DTCs. Refer to AUTOMATIC SHIFTING MANUAL TRANSMISSION/TRANSAXLE .
Transmission Control Switch (TCS) does not operate correctlyInstrument Cluster (IC) Circuitry open/shorted CJB fuse 22 (7.5A) Transmission Control Module (TCM) Transmission Control Switch (TCS)Go to PINPOINT TEST B .
Selector lever linkage is out of correct gear relationshipSelector lever linkage out of adjustmentRefer to SELECTOR LEVER CABLE ADJUSTMENT in this information.
Loose selector lever cable bracketCHECK the selector lever cable bracket. TIGHTEN as necessary.
Unable to remove the key from the ignitionCircuitry shorted Ignition lock cylinder Ignition switch Selector leverRefer to Diagnosis and Testing in STEERING COLUMN SWITCHES .
Selector lever making creaking noiseExcessive dirt/dust in the selector lever slideCLEAN selector lever slide.
Selector lever bindingSelector lever bezel damaged Selector lever damaged Selector lever cable damaged Internal transaxle components damagedCHECK the selector lever bezel for damage. If necessary, INSTALL a new selector lever. Refer to SELECTOR LEVER . CHECK the selector lever for damage. If necessary, INSTALL a new selector lever assembly. Refer to SELECTOR LEVER . CHECK the selector lever cable for damage. If necessary, INSTALL a new selector lever cable. Refer to SELECTOR LEVER CABLE in this information. CHECK manual control lever and internal transaxle components for damage. Refer to AUTOMATIC SHIFTING MANUAL TRANSMISSION/TRANSAXLE .
Brake shift interlock override does not release the selector leverBrake shift interlock override damagedINSPECT the selector lever for damage. If necessary, INSTALL a new selector lever. Refer to SELECTOR LEVER .

SYMPTOM CHART - EXTERNAL CONTROLS

Symptom Chart - NVH

Note. NVH symptoms should be identified using the diagnostic tools that are available. For a list of these tools, an explanation of their uses and a glossary of common terms, refer to NOISE, VIBRATION AND HARSHNESS . Since it is possible any one of multiple systems may be the cause of a symptom, it may be necessary to use a process of elimination type of diagnostic approach to pinpoint the responsible system. If this is not the causal system for the symptom, refer back to NOISE, VIBRATION AND HARSHNESS for the next likely system and continue diagnosis.

ConditionPossible SourcesAction
Vibration - a high frequency (20-80 Hz) that is felt through the seat or selector lever. Changes with engine speedSelector lever cable incorrectly routed, grounded out or looseCHECK the selector lever cable. REPAIR as necessary.

SYMPTOM CHART - NVH

Scheme 292

Scheme 292: Selector Lever Harness C3245 (Vehicle Harness Side)
Pin NumberCircuitCircuit Function
1CCA26 (BU/GY)Brake Shift Interlock Actuator (BSIA) solenoid power circuit
2CDC41 (WH/BN)Park position signal to ignition switch
3Park position signal to Instrument Cluster (IC)
4CLN04 (BU/BN)Power to PRNDL LED Illumination
5GD115 (BK/GY)Ground
6CBP22 (GN/OG)Transmission Control Switch (TCS)/Grade Assist button power supply from Central Junction Box (CJB)
7CE417 (GY/BN)TCS /Grade Assist button signal return
8Empty
9Empty
10Empty
11Empty
12CTE53 (BU/OG)BSIA solenoid ground

ELECTRIC CONNECTOR PIN NUMBER REFERENCE CHART