Land Rover Range Rover Automatic Transmission System Rover Manual

Page 10 of 24
1-13 Operation Pride
Automatic Transmission Diagnostics - Electrical Symptoms
Model: 1995-97 Range Rover
TCM FAULT CODE DIAGNOSIS
CODE: 01 FTGR, Solenoid supply malfunction
EFFECT: Limp home in third or fourth
DESCRIPTION
This fault code is associated with the internal relay of the TCM. This relay provides a means of inter-
rupting power to the solenoids, allowing the transmission to revert to a mechanical default condition.
The relay and associated circuitry is tested once during...

Page 11 of 24
1-13 Operation Pride
Automatic Transmission Diagnostics - Electrical Symptoms
Model: 1995-97 Range Rover
REPAIR
Renew the TCM and verify that everything works correctly.
CODE: 05 FDKI, Throttle angle malfunction
EFFECT: Substitute throttle angle of 30%
DESCRIPTION
Incorrect TPS information from the ECM can result in erratic shifts or no kickdown. This information
is transmitted to the TCM in the form of a Pulse Width Modulation (PWM) signal. This signal should
normally have a duty cycle of...

Page 12 of 24
1-13 Operation Pride
Automatic Transmission Diagnostics - Electrical Symptoms
Model: 1995-97 Range Rover
CODE: 07 FMV2, Shift solenoid B malfunction
EFFECT: Limp home in third or fourth
DESCRIPTION
A different gear may be encountered momentarily, i.e.:

First gear engages when fourth is selected.

Second gear engages when third is selected.

Third gear is engaged when first is selected.

Fourth gear engages when first is selected.

Reverse gear does not engage.
CAUSE
Open circuits or shorts...

Page 13 of 24
1-13 Operation Pride
Automatic Transmission Diagnostics - Electrical Symptoms
Model: 1995-97 Range Rover
CODE: 10 FPRGANZ2, Mode output 2
EFFECT: No noticeable effect
DESCRIPTION
Because the MES lines are an output to the BeCM they do not create failure mode in the TCM.
The following symptoms may be evident if the MES lines fail open or are shorted.

Sport is recognized by the BeCM as a fault.

Economy is recognized by the BeCM as low range manual.

Manual is recognized by the BeCM as...

Page 14 of 24
1-13 Operation Pride
Automatic Transmission Diagnostics - Electrical Symptoms
Model: 1995-97 Range Rover
CODE: 13 FMVWK, TCC output state does not match command state
EFFECT: Limp home in third or fourth
DESCRIPTION

TCC does not engage in third or fourth gears.

TCC does not disengage causing vibrations at lower engine speeds and stalling when coming to
a stop.
CAUSE
Open circuits or shorts in the wiring of the TCC solenoid.
REPAIR
Check the continuity of the wiring from the TCM to the...

Page 15 of 24
1-13 Operation Pride
Automatic Transmission Diagnostics - Electrical Symptoms
Model: 1995-97 Range Rover
CODE: 21 FN_MOT, Engine speed, no signal
EFFECT: Limp home in third or fourth
DESCRIPTION
Can be caused by the engine stalling out while in gear, or by CPS signals not being reliably re-
ceived by the ECM.
CAUSE
This fault is flagged if the engine exceeds 6100 rpm for more than 300 ms. In addition, if the engine
speed drops below 95 rpm and the selected gear is not Park or Neutral while...

Page 16 of 24
Automatic Transmission Diagnostics - Electrical Symptoms
CODE :24  FRSS, Output speed senso r, signal out of range
CODE :26  FT_ T, Engine torque signal out of range 

Page 17 of 24
1-13 Operation Pride
Automatic Transmission Diagnostics - Electrical Symptoms
Model: 1995-97 Range Rover
CAUSE
The ignition retard line from the ECM to the TCM will have a PWM signal to identify any ignition
retard requests during normal operation of the TCM.
This line will also indicate a fault condition when the TCM sends a PWM of less than 10% or
greater than 93% and the engine speed is above 448 rpm
REPAIR
Check the following connectors for any sign of loose connectors or terminals...

Page 18 of 24
1-13 Operation Pride
Automatic Transmission Diagnostics - Electrical Symptoms
Model: 1995-97 Range Rover
CODE: 28 FEPROM, TCM data corrupted
EFFECT: Limp home in third or fourth
DESCRIPTION
On each power-up the TCM analyzes its internal Read Only Memory (ROM) and checks that its
contents are correct by calculating the contents for a specified length and comparing this value
with the checksum value stored in ROM. When the two disagree on three attempts, the TCM will
flag a code 28. The ROM...

Page 19 of 24
1-13 Operation Pride
Automatic Transmission Diagnostics - Electrical Symptoms
Model: 1995-97 Range Rover
StatusPRND321 Normal P R N D 3 2 1 X o/c Z N N D D 1 1 Y o/c P P Z 1 2 2 1
 Z o/c P R N N R P Z
 X s/c gnd P R R 3 3 2 2
Y s/c gndRRND33D Z s/c gnd 2 3 D D 3 2 1 X s/c bat Z N N D D 1 1 Y s/c bat P P Z 1 2 2 1
 Z s/c bat P R N N R P Z
Note:Bold selections indicate a failure condition, Z is an open circuit condition on all switch
positions and is not normally seen.
The TCM will store...