Dodge Viper SRT-10 (ZB). Manual - part 434

TEST

ACTION

APPLICABILITY

Inspect the Air Induction System for the following problems.
Restrictions: Dirty Air Cleaner, Foreign material in the air intake tube, etc.
Leaks: Air Intake tube connection, Air Cleaner housing, etc.
Were any problems found?

All

Yes

→ Repair or replace as necessary.

Perform POWERTRAIN VERIFICATION TEST VER - 2.

→ Go To 4

Inspect the throttle body plate for carbon build up or other restrictions.
Inspect the throttle linkage for binding and smooth operation.
Ensure the throttle plate is resting on the stop at idle.
Remove IAC, inspect the pintle and its seating surface inside the throttle body.
Were any problems found?

All

Yes

→ Clean and/or replace the throttle body as needed.

Perform POWERTRAIN VERIFICATION TEST VER - 2.

→ Go To 5

Turn the ignition off.
Disconnect IAC Motor harness connector.
Disconnect the PCM harness connectors.
Measure the resistance of each of the IAC Driver circuit from the IAC Motor harness
connector to the PCM harness connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Go To 6

→ Repair the open in the appropriate IAC Driver circuit.

Perform POWERTRAIN VERIFICATION TEST VER - 2.

NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay
particular attention to all Power and Ground circuits.
If there are no possible causes remaining, view repair.

All

Repair

Replace and program the Powertrain Control Module per Service
Information.
Perform POWERTRAIN VERIFICATION TEST VER - 2.

143

DRIVEABILITY - GAS

P1294-TARGET IDLE NOT REACHED —

Continued

Symptom:

P1296-NO 5-VOLTS TO MAP SENSOR

When Monitored and Set Condition:

P1296-NO 5-VOLTS TO MAP SENSOR

When Monitored:

During power-down and battery voltage greater than 10.4 volts.

Set Condition:

The MAP sensor signal voltage goes below 2.35 volts with the key off for

5 seconds.

POSSIBLE CAUSES

MAP SENSOR VOLTS BELOW 2.3 VOLTS

MAP SENSOR

(K7) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND

SHORTED SENSOR

(K7) 5-VOLT SUPPLY CIRCUIT OPEN

PCM

TEST

ACTION

APPLICABILITY

NOTE: If the P0107 - MAP Sensor Voltage Too Low is also set, diagnose it
first before continuing with P1296 - No 5-volts To MAP Sensor.
Ignition on, engine not running.
With the DRBIII

t, read DTCs and record the related Freeze Frame data.

With the DRBIII

t in Sensors, read the MAP Sensor voltage.

Is the voltage below 2.35 volts?

All

Yes

→ Go To 2

→ Refer to the INTERMITTENT CONDITION Symptom (Diagnos-

tic Procedure).
Perform POWERTRAIN VERIFICATION TEST VER - 5.

Turn the ignition off.
Disconnect the MAP Sensor harness connector.
Ignition on, engine not running.
Measure the voltage on the (K7) 5-volt Supply circuit at the MAP Sensor harness
connector.
Is the voltage above 4.5 volts?

All

Yes

→ Go To 3

→ Go To 4

With the DRBIII

t in Sensors, read the MAP Sensor voltage with the Sensor harness

connector disconnected.
Is the voltage above 4.5 volts?

All

Yes

→ Replace the MAP Sensor.

Perform POWERTRAIN VERIFICATION TEST VER - 5.

→ Go To 7

144

DRIVEABILITY - GAS

TEST

ACTION

APPLICABILITY

Measure the voltage on the (K7) 5-volt Supply circuit in the MAP Sensor harness
connector while disconnecting the remaining Sensors that share the (K7) 5-volt
Supply circuit.
Does the voltage return to approximately 5.0 volts with any Sensor disconnected?

All

Yes

→ Replace the Sensor that pulled the (K7) 5-volt Supply circuit low.

Perform POWERTRAIN VERIFICATION TEST VER - 5.

→ Go To 5

Turn the ignition off.
Disconnect the PCM harness connectors.
Measure the resistance of the (K7) 5-volt Supply circuit from the MAP Sensor
harness connector to the PCM harness connector.
Is the resistance below 5.0 ohms?

All

Yes

→ Go To 6

→ Repair the excessive resistance in the (K7) 5-volt Supply circuit.

Perform POWERTRAIN VERIFICATION TEST VER - 5.

Measure the resistance between ground and the (K7) 5-volt Supply circuit in the
MAP Sensor harness connector.
Is the resistance below 100 ohms?

All

Yes

→ Repair the short to ground in the (K7) 5-volt Supply circuit.

Perform POWERTRAIN VERIFICATION TEST VER - 5.

→ Go To 7

All

Repair

Replace and program the Powertrain Control Module per Service
Information.
Perform POWERTRAIN VERIFICATION TEST VER - 5.

145

DRIVEABILITY - GAS

P1296-NO 5-VOLTS TO MAP SENSOR —

Continued

Symptom:

P1297-NO CHANGE IN MAP FROM START TO RUN

When Monitored and Set Condition:

P1297-NO CHANGE IN MAP FROM START TO RUN

When Monitored:

With engine RPM +/- 64 of target idle and the throttle blade at closed

throttle.

Set Condition:

Too small of a difference is seen between barometric pressure with ignition

on (engine running) and manifold vacuum for 8.80 seconds.

POSSIBLE CAUSES

GOOD TRIP EQUAL TO ZERO

MAP SENSOR VACUUM PORT

MAP SENSOR VOLTAGE BELOW 3.19 VOLTS

(K7) 5-VOLT SUPPLY CIRCUIT OPEN

(K7) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND

MAP SENSOR

(K1) MAP SENSOR SIGNAL CIRCUIT SHORTED TO GROUND

(K1) MAP SENSOR SIGNAL CIRCUIT SHORTED TO (K900) SENSOR GROUND CIRCUIT

PCM

TEST

ACTION

APPLICABILITY

NOTE: If a MAP high or Low DTC set along with P1297, diagnose the High
or Low DTC first before continuing.
Ignition on, engine not running.
With the DRBIII

t, read DTCs and record the related Freeze Frame data.

Is the Good Trip Counter displayed and equal to zero?

All

Yes

→ Go To 2

→ Refer to the INTERMITTENT CONDITION Symptom (Diagnos-

tic Procedure).
Perform POWERTRAIN VERIFICATION TEST VER - 5.

Turn the ignition off.
Remove the MAP Sensor.
Inspect the vacuum port, check for restrictions or any foreign materials.
Were any restriction found?

All

Yes

→ Repair as necessary.

Perform POWERTRAIN VERIFICATION TEST VER - 5.

→ Go To 3

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DRIVEABILITY - GAS

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