TOPix - SSM72083 - Twin Solenoid(TS) starter motor diagnosis

Reference
Models

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SSM72083
Range Rover Evoque / L538
LR4/L319
Range Rover Sport/ L494
Range Rover/ L405

Title

Twin Solenoid(TS) starter motor diagnosis

Category

Electrical

Last modified

24-Nov-2014 00:00:00

Symptom

203000 Basic Electrical

Attachments

ssm starter image.pdf

Content

Applicable models and engine derivatives

Discovery 4 I L319 Engine TDV6, AJ126 & AJ 133 14 MY onwards
Range Rover/ L405 Engine TDV6, AJ126 & AJ133 14 MY onwards
Range Rover Sport/ L494 Engine TDV6, AJ 126 & AJ133 14 MY onwards
Range Rover Evoque/L538 & Discovery Sport /L550 Engine DW12 2.2 DIESEL & 14 GTDi (2.01)
Issue

A significant number of TSS motors have been replaced under warranty, when returned to the supplier for analysis many are deemed as
"No Fault Found".
It is possible during an ECO stop start that the vehicle does not re-start.
Cause

Incorrect diagnosis.
Action

Carry out the following steps:
DTC's may be present, due to this carry out a DTC global read using the recommended diagnostic and follow the help text for each
DTC's.
1. Carry out a battery test using an EXP-1080 or GRX Midtronics diagnostic charger; follow the instructions on the battery tester as per

the battery care requirements on Topix.

2. Pull out the Conventional Starter/TSS Pinion relay (Relay Starter Pinion), only the pinion rotation (free spin) should be heard whilst
attempting to crank engine.
-If the pinion is heard to throw (Single click noise), then the harness requires checking as per the wiring diagram on Topix, carry out any
repairs in line with harness repair manual.
-If nothing is heard-:
a) Check the pinion rotate relay (Relay Starter motor) and the wiring from the relay to the starter motor
b) Check the connection at the T30 terminal (B+), see attachment
c) Check for good earth grounding points
d) Check fuses
-Re-install the Pinion relay.
3. Pull out the TSS Starter MTR Relay (Relay Starter motor), and only the pinion engagement (Single click noise) should be heard whilst

attempting to crank engine
- If the pinion is heard to rotate (free-spin), then the wiring is incorrect- please rectify the harness as per the wiring diagram on Topix.
- If nothing is heard-:
a) Check the Conventional Starter/TSS Pinion relay (Relay Starter Pinion) and the wiring from the relay to the starter motor
b) Check for good connection at the TSO
c) Check fuses
-Re-install the Starter Motor relay.
Contact Technical support if failure persists. Please ensure you have the following information
Recorded Voltage present at the T45 and T30
Recorded Battery voltage
Recorded Ambient temperature at time of testing
DTC list

http://topix.landrover.jlrint.com/topix/service/arc hive/5 09 871/index

12/2/2014

TOPix - SSM72083 - Twin Solenoid(TS) starter motor diagnosis

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Technicians - Please rate this SSM and provide comments so that future communications can be improved.
1 =Poor-Basic information provided - The SSM does not help me resolve the customer concern.
3 = Average - Adequate information provided - The SSM partially helps me resolve the customer concern.
5 = Excellent -All required information provided to resolve the customer concern

http://topix.landrover.jlrint.com/topix/service/arc hive/5 09 871/index

12/2/2014

T30 Battery feed
to solenoid(B+)

TSO SL 1 /SL2
relays feed

T45 Solenoid to
Motor feed ( M+)