2001 CHRYSLER VOYAGER ignition

Symptom:
P0600-SERIAL COMMUNICATION LINK MALFUNCTION
When Monitored and Set Condition:
P0600-SERIAL COMMUNICATION LINK MALFUNCTION
When Monitored: Continuously with engine running.
Set Condition: The DTC sets in approximately 20 seconds if no BUS messages are
received by the TCM.
POSSIBLE CAUSES
NO COMMUNICATION WITH MIC
NO COMMUNICATION WITH PCM
INTERMITTENT WIRING AND CONNECTORS
TCM - INTERNAL ERROR
TEST ACTION APPLICABILITY
1 With the DRBIIIt, erase TCM DTC's.
Note: Erase P0700 DTC in the PCM to turn the MIL light off after making
transmission repairs.
Start the engine in park.
Did the DTC reset after the engine was started?All
Ye s®Go To 2
No®Go To 5
2 Ignition on, engine not running.
With the DRBIIIt, attempt communication with the MIC
Can you communicate with the MIC?All
Ye s®Go To 3
No®Refer to the Communication category for the related symptom(s).
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
3 Ignition on, engine not running.
With the DRBIIIt, select the following screens in order:9BODY99MIC99MONITOR
DISPLAY99PCI BUS ENGINE INFO9.
Does the DRBIIIt, read9NO RESPONSE9from any of the listed PCM monitors?All
Ye s®Refer to Communication Category for the related symptom(s).
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 4
4 If there are no possible causes remaining, view repair. All
Repair
Replace the TCM. WITH THE DRBIIItPERFORM QUICK
LEARN AND REPROGRAM PINION FACTOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
26
TRANSMISSION

Symptom:
P0705-CHECK SHIFTER SIGNAL
When Monitored and Set Condition:
P0705-CHECK SHIFTER SIGNAL
When Monitored: Continuously with the ignition key on.
Set Condition: 3 occurrences in one key start of an invalid PRNDL code which lasts for
more than 0.1 second.
POSSIBLE CAUSES
CONDITION P0705 PRESENT
INTERMITTENT WIRING AND CONNECTORS
TRS T1 SENSE CIRCUIT OPEN
TRS T3 SENSE CIRCUIT OPEN
TRS T41 SENSE CIRCUIT OPEN
TRS T42 SENSE CIRCUIT OPEN
TRS T1 SENSE CIRCUIT SHORTED TO GROUND
TRS T3 SENSE CIRCUIT SHORTED TO GROUND
TRS T41 SENSE CIRCUIT SHORTED TO GROUND
TRS T42 SENSE CIRCUIT SHORTED TO GROUND
TRS T1 SENSE CIRCUIT SHORTED TO VOLTAGE
TRS T3 SENSE CIRCUIT SHORTED TO VOLTAGE
TRS T41 SENSE CIRCUIT SHORTED TO VOLTAGE
TRS T42 SENSE CIRCUIT SHORTED TO VOLTAGE
TRANSMISSION RANGE SENSOR
TCM - TRS T1 SENSE CIRCUIT
TCM - TRS T3 SENSE CIRCUIT
TCM - TRS T41 SENSE CIRCUIT
TCM - TRS T42 SENSE CIRCUIT
31
TRANSMISSION

TEST ACTION APPLICABILITY
4 Turn the ignition off to the lock position.
CAUTION: Remove the Starter Relay from the IPM. This will prevent the
vehicle from being started in gear.
Install Transmission Simulator, Miller tool #8333 and the FWD Adapter Cable kit,
Miller tool #8333-1.
Ignition on, engine not running.
With the DRBIIIt, perform the Shift Lever Position Test with the Transmission
Simulator installed.
When the DRBIIItinstructs you to put the Gear Selector in a particular position,
you must do so using the Simulator tool. The LED for the gear position in question
must be illuminated prior to hitting9enter9on the DRBIIIt.
Did the test pass?All
Ye s®Go To 5
No®Go To 6
NOTE: Disconnect the Transmission Simulator and reconnect all the har-
ness connectors.
5 If there are no possible causes remaining, view repair. All
Repair
Replace the Transmission Range Sensor.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
6 Ignition on, engine not running.
With the DRBIIItin Inputs/Outputs, read the TRS Sense circuits C1 thru C4.
Move the shift lever thru all gear positions, pausing momentarily in each gear
position. Watch for one of the circuits to not change state.
Pick the one that did not change state.All
TRS T1 sense (C4)
Go To 7
TRS T3 sense (C3)
Go To 11
TRS T41 sense (C1)
Go To 15
TRS T42 sense (C2)
Go To 19
7 Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the TRS T1 Sense circuit from the TCM harness connector
to the TRS harness connector.
Is the resistance above 5.0 ohms?All
Ye s®Repair the TRS T1 Sense circuit for an open.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 8
33
TRANSMISSION
P0705-CHECK SHIFTER SIGNAL ÐContinued

TEST ACTION APPLICABILITY
8 Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between the TRS T1 Sense circuit at the TCM connector and
ground.
Is the resistance below 5.0 ohms?All
Ye s®Repair the TRS T1 Sense circuit for a short to ground.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 9
9 Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Remove the Transmission Control Relay from the IPM.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and the Transmission Control
Relay Output circuit in the Transmission Control Relay connector in the IPM.
Ignition on, engine not running.
Measure the voltage of the TRS T1 Sense circuit at the TCM harness connector.
Is the voltage above 0.5 volt?All
Ye s®Repair the TRS T1 Sense circuit for a short to voltage.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 10
10 If there are no possible causes remaining, view repair. All
Repair
Replace the TCM. WITH THE DRBIIItPERFORM QUICK
LEARN AND REPROGRAM PINION FACTOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
11 Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the TRS T3 Sense circuit from the TCM harness connector
to the TRS harness connector.
Is the resistance above 5.0 ohms?All
Ye s®Repair the TRS T3 Sense circuit for an open.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 12
12 Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the TRS T3 Sense circuit in the TCM
harness connector.
Is the resistance below 5.0 ohms?All
Ye s®Repair the TRS T3 Sense circuit for a short to ground.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 13
34
TRANSMISSION
P0705-CHECK SHIFTER SIGNAL ÐContinued

TEST ACTION APPLICABILITY
13 Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Remove the Transmission Control Relay from the IPM.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and the Transmission Control
Relay Output circuit in the Transmission Control Relay connector in the IPM.
Ignition on, engine not running.
Measure the voltage of the TRS T3 Sense circuit at the TCM harness connector.
Is the voltage above 0.5 volt?All
Ye s®Repair the TRS T3 Sense circuit for a short to voltage.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 14
14 If there are no possible causes remaining, view repair. All
Repair
Replace the TCM. WITH THE DRBIIItPERFORM QUICK
LEARN AND REPROGRAM PINION FACTOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
15 Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the TRS T41 Sense circuit from the TCM connector to the
TRS connector.
Is the resistance above 5.0 ohms?All
Ye s®Repair the TRS T41 Sense circuit for an open.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 16
16 Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the TRS T41 Sense circuit in the TCM
harness connector.
Is the resistance below 5.0 ohms?All
Ye s®Repair the TRS T41 Sense circuit for a short to ground.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 17
35
TRANSMISSION
P0705-CHECK SHIFTER SIGNAL ÐContinued

TEST ACTION APPLICABILITY
17 Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Remove the Transmission Control Relay from the IPM.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and the Transmission Control
Relay Output circuit in the Transmission Control Relay connector in the IPM.
Ignition on, engine not running.
Measure the voltage of the TRS T41 Sense circuit at the TCM harness connector.
Is the voltage above 0.5 volt?All
Ye s®Repair the TRS T41 Sense circuit for a short to voltage.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 18
18 If there are no possible causes remaining, view repair. All
Repair
Replace the TCM. WITH THE DRBIIItPERFORM QUICK
LEARN AND REPROGRAM PINION FACTOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
19 Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the TRS T42 Sense circuit from the TCM harness
connector to the TRS harness connector.
Is the resistance above 5.0 ohms?All
Ye s®Repair the TRS T42 Sense circuit for an open.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 20
20 Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance between ground and the TRS T42 Sense circuit in the TCM
harness connector.
Is the resistance below 5.0 ohms?All
Ye s®Repair the TRS T42 Sense circuit for a short to ground..
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 21
36
TRANSMISSION
P0705-CHECK SHIFTER SIGNAL ÐContinued

TEST ACTION APPLICABILITY
21 Turn the ignition off to the lock position.
Disconnect the TRS harness connector.
Disconnect the TCM harness connector.
Remove the Transmission Control Relay from the IPM.
Note: Check connectors - Clean/repair as necessary.
Connect a jumper wire between the Fused B+ circuit and the Transmission Control
Relay Output circuit in the Transmission Control Relay connector in the IPM.
Ignition on, engine not running.
Measure the voltage of the TRS T42 Sense circuit at the TCM harness connector.
Is the voltage above 0.5 volt?All
Ye s®Repair the TRS T42 Sense circuit for a short to voltage.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 22
22 If there are no possible causes remaining, view repair. All
Repair
Replace the TCM. WITH THE DRBIIItPERFORM QUICK
LEARN AND REPROGRAM PINION FACTOR.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
37
TRANSMISSION
P0705-CHECK SHIFTER SIGNAL ÐContinued

TEST ACTION APPLICABILITY
2 Start the engine in park.
With the DRBIIIt, observe the Input Speed Sensor RPM.
Is the Input Speed Sensor Reading below 400 RPM?All
Ye s®Go To 3
No®Go To 11
3 Turn the ignition off to the lock position.
CAUTION: Remove the Starter Relay from the IPM. This will prevent the
vehicle from being started in gear.
Install Transmission Simulator, Miller tool #8333 and the FWD Adapter Cable kit,
Miller tool #8333-1.
Ignition on, engine not running.
Using the Transmission Simulator, set the rotary knob to the 3000/1250 position.
Turn the9Input/Output9switch to ON.
With the DRBIIIt, observe the Input RPM and Output RPM.
Does the Input speed read 3000 RPM and the Output speed read 1250 RPM +/-50
RPM?All
Ye s®Go To 4
No®Go To 5
NOTE: Disconnect the Transmission Simulator and reconnect all harness
connectors.
4 If there are no possible causes remaining, view repair. All
Repair
Replace the Input Speed Sensor.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
5 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Input Speed Sensor harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Input Speed Sensor Signal circuit from the TCM
harness connector to the Input Speed Sensor harness connector.
Is the resistance above 5.0 ohms?All
Ye s®Repair the Input Speed Sensor Signal circuit for an open.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 6
6 Turn the ignition off to the lock position.
Disconnect the TCM harness connector.
Disconnect the Input Speed Sensor harness connector.
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the Speed Sensor Ground circuit from the TCM harness
connector to the Input Speed Sensor harness connector.
Is the resistance above 5.0 ohms?All
Ye s®Repair the Speed Sensor Ground circuit for an open.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No®Go To 7
39
TRANSMISSION
P0715-INPUT SPEED SENSOR ERROR ÐContinued