Dtc P0638, P2100, P2101, Or P2119 - Suzuki XL7 2007 Service Manual

Circuit/System Testing
1. Ignition OFF, disconnect the fuel pump relay.
2. Connect a test lamp between the control circuit of
the fuel pump relay and ground.
3. Ignition ON, command the fuel pump ON and OFF
with a scan tool. The test lamp should turn ON and
OFF as commanded.
➢ If the test lamp remains OFF all the time, test for a
short to ground or an open/high resistance on the
control circuit. If circuit/connections test normal,
replace the ECM.
➢ If the test lamp remains ON all the time, test for a
short to voltage on the control circuit. If circuit/
connections test normal, replace the ECM.
4. Ignition OFF, connect a test lamp between the fuel
pump relay control circuit and the ground circuit of
the fuel pump relay.
5. Ignition ON, command the fuel pump ON and OFF
with a scan tool. The test lamp should turn ON and
OFF as commanded.
➢ If the test lamp does not turn ON when
commanded, repair the open/high resistance in
ground circuit of the fuel pump relay.
6. Ignition ON, test for 2-3 volts on the control circuit of
the fuel pump relay.
➢ If the voltage is not within the specified range,
replace the ECM.
7. If all circuits/connections test normal, test or replace
the fuel pump relay.

DTC P0638, P2100, P2101, or P2119

Diagnostic Instructions
• Perform the "Diagnostic System Check - Vehicle Diagnostic Information: " prior to using this diagnostic procedure.
• Review "Strategy Based Diagnosis: " for an overview of the diagnostic approach.
• "Diagnostic Procedure Instructions - Vehicle Diagnostic Information: " provides an overview of each diagnostic
category.
DTC Descriptors
DTC P0638: Throttle Actuator Control (TAC) Command Performance
DTC P2100: Throttle Actuator Control (TAC) Motor Control Circuit
DTC P2101: Control Module Throttle Actuator Position Performance
DTC P2119: Throttle Closed Position Performance
Diagnostic Fault Information
Circuit
Motor Control 1
Motor Control 2
Engine General Information and Diagnosis:
Component Testing
1. Measure for 110-150 ohms of resistance between
terminals 1 and 2 of the fuel pump relay.
➢ If the resistance is not within the specified range,
replace the fuel pump relay.
2. Measure for infinite resistance between the following
terminals of the fuel pump relay:
– 3 and 2
– 3 and 5
– 3 and 1
– 1 and 5
➢ If continuity is detected, replace the fuel pump
relay.
3. Connect a 15 amp fused jumper wire from the
positive terminal of the battery to relay terminal 1.
Connect a jumper wire from the negative terminal of
the battery to relay terminal 2. Measure for less than
2 ohms between terminals 3 and 5 of the relay.
➢ If the resistance measures more than 2 ohms,
replace the fuel pump relay.
Repair Instructions
Perform the "Diagnostic Repair Verification - Vehicle
Diagnostic Information: " after completing the diagnostic
procedure.
• "Relay Replacement (Within an Electrical Center): "
"Relay Replacement (Attached to Wire Harness): "
• "Control Module References: " for engine control
module replacement, setup, and programming
Short to High
Ground Resistance
P2100,
P2100,
P2101,
P2101
P2119
P2100,
P2100,
P2101,
P2101
P2119
Short to
Open
Voltage
P2100,
P0123,
P2101,
P2101
P2119
P2100,
P2101, P2101
P2119
1A-134
Signal
Performance
P0638,
P2101,
P2119
P0638,
P2101,
P2119